CN104759841B - Fracture halving seal ring fabrication method - Google Patents
Fracture halving seal ring fabrication method Download PDFInfo
- Publication number
- CN104759841B CN104759841B CN201510109432.0A CN201510109432A CN104759841B CN 104759841 B CN104759841 B CN 104759841B CN 201510109432 A CN201510109432 A CN 201510109432A CN 104759841 B CN104759841 B CN 104759841B
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- Prior art keywords
- sealing ring
- rounding
- fracture
- stress concentration
- breach
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
Abstract
The invention discloses a fracture halving seal ring fabrication method. The method is characterized by selecting a circular seal ring made of fragile materials, producing a stress concentrated gap along the decided section position, wherein the stress concentrated gap position is symmetrical to the ring center; applying tension or impact force along the direction vertical to the decided section to open the fracture to form two halving rings; splicing the two halving rings through the corresponding fractures to form a fracture halving seal ring. By the aid of the method, location and sealing are performed through the fractures which are naturally formed, and accordingly, the mounting and usage process can be located accurately, and the seal effect can be guaranteed.
Description
The application is Application No.: 2012104438514, the applying date is on November 8th, 2012, invention entitled: fracture
The processing method of point sealing ring in formula；Application is artificial: the divisional application of Hefei General Machinery Institute.
Technical field
The invention belongs to field of machining, more specifically a kind of in point sealing ring processing method.
Background technology
In point sealing ring be that the semi-ring being processed into two lobes is constituted, be assembled into the domain, the composition surface of two semi-rings when using
Referred to as section.Using in point sealing ring primarily to being easily installed under some specific occasions.
Therefore, in, a point feature during processing and use for the sealing ring is: first have to for sealing ring to be processed into two lobes, and
Can position being assembled into when annulus uses, form effective sealing ring；Next section when being assembled into annulus use has good
Good sealing effectiveness.
In a point positioning mode when installing and using for the sealing ring have many kinds, relatively common has seam positioning, boss fixed
Position, taper pin positioning etc..These installation and locating methods have fracture cutting or attrition process is complicated smooth disconnected with thus bring
The problem of face seal effect difference.First, complexity, high-precision in order to obtain that necessary positioning precision must carry out to positioning datum
The machining of degree, the processing method of employing is (numerical control) electromachining equipment (as wire cutting machine tool, spark-erosion machine tool etc.) and (number
Control) machining equipment (such as grinding machine etc., it cuts tool material is diamond or hard alloy), the process-cycle is long, and difficulty is big；Its
Secondary is that the sealing ring disconnecting must combine using according to cross section place when using and have sealing function, due to above-mentioned
The cross-sectional face processed of machining process smooth it is necessary to just sealing function can be played in incision position coating fluid sealant, be subject to
Seal the restriction of adhesive process to fluid sealant decay resistance and coating, sealing effectiveness is not ideal enough.
Content of the invention
The present invention is for avoiding the weak point existing for above-mentioned prior art, providing point sealing ring in a kind of fracture type
Processing method, it is necessary for obtaining that the maximum difference with the processing of other midsplit type sealing rings and positioning mode is that it does not rely on
Positioning precision and be directed to complexity, the high-precision machining that the positioning datum of fracture is carried out, fracture surface is uneven
Feature makes fracture precise positioning have sealing effectiveness during installing and using.
The present invention is to solve technical problem to adopt the following technical scheme that
In fracture type of the present invention, the feature of the processing method of point sealing ring is to carry out as follows:
A, select with the rounding sealing ring of fragile material machine-shaping, to described rounding sealing ring, the section drafted along it
Stress concentration breach is prepared in position, and the position of described stress concentration breach is symmetrical with regard to circle ring center；Described stress concentration breach
Or be on the outer circumference surface of described rounding sealing ring, or be on the periphery of described rounding sealing ring, or be concurrently residing in
On the outer circumference surface of described rounding sealing ring and on inner peripheral surface；
B, edge apply stretching or impulsive force to strut fracture perpendicular to the direction of the section drafted, and are formed in two lobes and divide
Ring；
C, point rings point sealing ring in fracture type will be formed with the corresponding mutual split of fracture in described two lobes.
In fracture type of the present invention, the feature of the processing method of point sealing ring lies also in:
Described fragile material is hard alloy, graphite or pottery.
Stress concentration breach on the described outer circumference surface positioned at rounding sealing ring or inner peripheral surface is set to following form
One of:
Form one: be at upper surface or the lower surface of rounding sealing ring；
Form two: office is at the upper surface or lower surface of rounding sealing ring simultaneously；
Form three: run through between the upper surface and lower surface of rounding sealing ring, form axial straight trough, or be in one with axis
The oblique slot of angle；
Described stress concentration breach is rectangle, triangle or circular arc.
Described edge applies stretching perpendicular to the direction of the section drafted or the method for impulsive force is: in described rounding sealing ring
The symmetric position of inner peripheral surface on, and with described stress concentration breach be in 90 ° distribution, arrange a pair of backing plate；The pair of
Between backing plate setting can radial extent drive mechanism, starting described drive mechanism makes the pair of backing plate along perpendicular to section
Direction stretches or supports the described rounding sealing ring that rises, until described rounding sealing ring is broken as in two lobes a point ring.
Compared with the prior art, the present invention has the beneficial effect that:
1st, adopt point sealing ring in the inventive method manufacture, it is to avoid complicated high-precision machining；
2nd, the present invention implements positioning by using the fracture of self-assembling formation and seals, and it is installed and can precisely be determined using process
Position simultaneously can guarantee that sealing effectiveness.
Brief description
Fig. 1 a, Fig. 1 b are the different fracture site schematic diagram of sealing ring of the present invention with Fig. 1 c；
Fig. 2 a, Fig. 2 b, Fig. 2 c, Fig. 2 d are the different section configuration schematic diagram of sealing ring of the present invention with Fig. 2 e；
Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d are the different fracture site schematic diagram of sealing ring of the present invention with Fig. 3 e；
Fig. 4 a is the different processing method schematic diagram of sealing ring of the present invention with Fig. 4 b；
Fig. 5 a, Fig. 5 b and Fig. 5 c are before and after sealing ring fracture of the present invention is processed and use state schematic diagram.
Specific embodiment
In fracture type in the present embodiment, the processing method of point sealing ring is carried out as follows:
1st, select with the rounding sealing ring 1 of fragile material machine-shaping, to rounding sealing ring 1, the section position drafted along it
Put preparation stress concentration breach 2 (as shown in Figure 5 a), the position of stress concentration breach 2 is symmetrical with regard to circle ring center；Stress concentration
Breach 2 or be on the outer circumference surface of rounding sealing ring 1 (shown in Fig. 1 a and Fig. 3 a), or the circumference being in rounding sealing ring 1
On face (shown in Fig. 1 b and Fig. 3 b), or it is concurrently residing on the outer circumference surface of rounding sealing ring 1 and (Fig. 1 c and Fig. 3 c on inner peripheral surface
Shown)；
2nd, apply stretching or impulsive force to strut fracture along perpendicular to the direction of the section drafted, form point ring in two lobes
5 (shown in Fig. 5 b)；
3rd, in two lobes points of rings 5 are formed with the corresponding mutual split of fracture and divide sealing ring in fracture type (as Fig. 5 c institute
Show).
In being embodied as, the stress concentration breach on the outer circumference surface or inner peripheral surface of rounding sealing ring 1 can set
It is set to one of following form:
Form one: be at the upper surface (shown in Fig. 3 a) of rounding sealing ring 1 or lower surface (shown in Fig. 3 b)；
Form two: office (shown in Fig. 3 c) at the upper surface or lower surface of rounding sealing ring simultaneously；
Form three: run through between the upper surface and lower surface of rounding sealing ring, form axial straight trough (shown in Fig. 3 d), or
The oblique slot (Fig. 3 e shown in) at an angle with axis；
Stress concentration breach can be rectangle (shown in Fig. 2 a), triangle (shown in Fig. 2 b) or circular arc (shown in Fig. 2 c),
Can also be rectangle and triangle combination (shown in Fig. 2 d), or rectangle and circular arc combination (shown in Fig. 2 e).
In being embodied as, along the method such as Fig. 4 a and Fig. 4 b that apply stretching or impulsive force perpendicular to the direction of the section drafted
Shown:
Referring to Fig. 4 a, rounding sealing ring 1 is sleeved on diminished shaft 3, keeps diminished shaft to be to maintain static, in diminished shaft 3
The vertex of a cone apply pressure vertically towards the end face of rounding sealing ring 1 at one end, make rounding sealing ring and diminished shaft that phase to occur
To displacement, until rounding sealing ring is broken as in two lobes a point ring；Or be: keep rounding sealing ring 1 to be to maintain static, direction
The cone bottom of diminished shaft applies pressure vertically, makes rounding sealing ring, with diminished shaft, relative displacement occur, until stating rounding sealing
Ring is broken as in two lobes a point ring.
Or for as shown in Figure 4 b: in the symmetric position of the inner peripheral surface of rounding sealing ring 1, and with stress concentration breach it is in
90 ° of distributions, arrange a pair of backing plate 4；Between a pair of backing plate 4 setting can radial extent drive mechanism, start drive mechanism make one
To backing plate along stretching perpendicular to the direction of section or supportting the rounding sealing ring that rises, it is broken as in two lobes up to rounding sealing ring
Divide ring.
Fragile material can be hard alloy, graphite, pottery (aluminium oxide, carborundum, carbonization etc.) or cast iron (high chrome molybdenum
Alloy cast iron, high-silicon cast iron, spheroidal graphite cast-iron etc.), point sealing ring in being manufactured using the processing method of the present invention, it is possible to use fracture
Surface is uneven, and due to there being good reproducibility to naturally form numerous microcosmic " seam " with one-to-one relationship
And sealing effectiveness, making the position that fracture docks have uniqueness, effectively prevent the generation of docking inconsistent phenomenon it is ensured that positioning
Precision, point sealing ring precise positioning there is sealing effectiveness during installing and using in making.
Claims (4)
1. the processing method dividing sealing ring in fracture type, is characterized in that carrying out as follows:
A, select with the rounding sealing ring of fragile material machine-shaping, to described rounding sealing ring, the cross section place drafted along it
Preparation stress concentration breach, the position of described stress concentration breach is with regard to rounding sealing ring centrosymmetry；Described stress concentration lacks
Mouthful or be on the outer circumference surface of described rounding sealing ring, or be on the periphery of described rounding sealing ring, or locate simultaneously
On the outer circumference surface of described rounding sealing ring and on inner peripheral surface；
B, edge apply stretching or impulsive force to strut fracture perpendicular to the direction of the section drafted, and form point ring in two lobes；
Described edge applies stretching perpendicular to the direction of the section drafted or the method for impulsive force is: in described rounding sealing ring
In the symmetric position of periphery, and it is in 90 ° of distributions with described stress concentration breach, a pair of backing plate is set；In the pair of backing plate
Between setting can radial extent drive mechanism, starting described drive mechanism makes the pair of backing plate along perpendicular to the direction of section
Stretch or support the described rounding sealing ring that rises, until described rounding sealing ring is broken as in two lobes a point ring；
C, point rings point sealing ring in fracture type will be formed with the corresponding mutual split of fracture in described two lobes.
2. the processing method dividing sealing ring in fracture type according to claim 1, is characterized in that: described fragile material is hard
Matter alloy, graphite or pottery.
3. in fracture type according to claim 1 point sealing ring processing method, it is characterized in that: described positioned at rounding sealing
Stress concentration breach on the outer circumference surface of ring or inner peripheral surface is set to one of following form:
Form one: be at upper surface or the lower surface of rounding sealing ring；
Form two: office is at the upper surface and lower surface of rounding sealing ring simultaneously；
Form three: run through between the upper surface and lower surface of rounding sealing ring, form axial straight trough, or at an angle with axis
Oblique slot.
4. the processing method dividing sealing ring in fracture type according to claim 1, is characterized in that: described stress concentration breach
For rectangle, triangle or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109432.0A CN104759841B (en) | 2012-11-08 | 2012-11-08 | Fracture halving seal ring fabrication method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443851.4A CN102941445B (en) | 2012-11-08 | 2012-11-08 | Method for processing fracture type halving sealing ring |
| CN201510109432.0A CN104759841B (en) | 2012-11-08 | 2012-11-08 | Fracture halving seal ring fabrication method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210443851.4A Division CN102941445B (en) | 2012-11-08 | 2012-11-08 | Method for processing fracture type halving sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759841A CN104759841A (en) | 2015-07-08 |
| CN104759841B true CN104759841B (en) | 2017-02-01 |
Family
ID=47724485
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210443851.4A Active CN102941445B (en) | 2012-11-08 | 2012-11-08 | Method for processing fracture type halving sealing ring |
| CN201510109432.0A Active CN104759841B (en) | 2012-11-08 | 2012-11-08 | Fracture halving seal ring fabrication method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210443851.4A Active CN102941445B (en) | 2012-11-08 | 2012-11-08 | Method for processing fracture type halving sealing ring |
Country Status (1)
| Country | Link |
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| CN (2) | CN102941445B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752919B (en) * | 2014-01-09 | 2016-01-13 | 大连理工大学 | A kind of not rounded packing type sealing ring processing method |
| CN104214350B (en) * | 2014-09-28 | 2016-04-13 | 成都亿密科技有限公司 | The processing technology of a kind of seal ring, split type sealing configuration and seal ring |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810141A (en) * | 1955-08-02 | 1959-03-11 | Clevite Corp | Sealing ring and method of making same |
| US3101200A (en) * | 1961-05-23 | 1963-08-20 | Borg Warner | Sectional mechanical seal assembly |
| US3670383A (en) * | 1971-04-26 | 1972-06-20 | Curtiss Wright Corp | Method of manufacture of an oil seal ring having dual scraper elements for rotary piston mechanisms |
| WO1989002999A1 (en) * | 1987-10-02 | 1989-04-06 | Durametallic Corporation | Mechanical seal |
| CN1128039C (en) * | 1999-08-10 | 2003-11-19 | 蒋德轩 | Method for manufacturing sealing ring |
| CN102168757A (en) * | 2011-02-01 | 2011-08-31 | 宁波天生密封件有限公司 | C-shaped cladding sealing ring of built-in spring and manufacturing method thereof |
| CN102434668A (en) * | 2011-12-12 | 2012-05-02 | 大连理工安全装备有限公司 | Self-tightening conical ring sealing structure |
-
2012
- 2012-11-08 CN CN201210443851.4A patent/CN102941445B/en active Active
- 2012-11-08 CN CN201510109432.0A patent/CN104759841B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102941445A (en) | 2013-02-27 |
| CN104759841A (en) | 2015-07-08 |
| CN102941445B (en) | 2015-05-06 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |