[go: up one dir, main page]

CN1073386A - The method of processing sealing - Google Patents

The method of processing sealing Download PDF

Info

Publication number
CN1073386A
CN1073386A CN 92114162 CN92114162A CN1073386A CN 1073386 A CN1073386 A CN 1073386A CN 92114162 CN92114162 CN 92114162 CN 92114162 A CN92114162 A CN 92114162A CN 1073386 A CN1073386 A CN 1073386A
Authority
CN
China
Prior art keywords
groove
tool
forming
sealing
face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 92114162
Other languages
Chinese (zh)
Inventor
D·H·罗伯茨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dowty Seals Ltd
Original Assignee
Dowty Seals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dowty Seals Ltd filed Critical Dowty Seals Ltd
Publication of CN1073386A publication Critical patent/CN1073386A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0053—Producing sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/007—Forming single grooves or ribs, e.g. tear lines, weak spots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Forests & Forestry (AREA)
  • Sealing Devices (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

By with the end face (5) of Slot shaping cutter (6) indentation sealing failed part and make this blank and this moulding cutter (6) relative motion, form the sealing of trough of belt.Moulding cutter (6) is the roller form that is contained in knife rest (8) rotationally.This roller makes it to rotate by relative motion.Squeezing action is given the groove favorable surface quality by squeezing action formation groove (10).

Description

The method of processing sealing
The present invention relates to process the method for sealing, particularly process the method for trough of belt sealing.
The trough of belt sealing is usually used in forming sealing around the rotating shaft of machinery.These grooves play the fluid dynamic effect of driving away lubricating oil from sealing.In the past, use sharp-pointed cutter working groove on encapsulant.Yet the groove that is processed into has coarse surface quality.And coarse surface quality is retained in lubricating oil film in the groove.As a result, the lubricating oil of reservation is in this surface combustion; Groove gets clogged and lost efficacy.
For some encapsulants of dosing glass, process after a small amount of part the cutter rust.When blunt cutter is further used for cutting slot, on encapsulant, can produce and break with cracked, thereby, produce the low-quality groove that causes premature failure.
Both make cutter sharp-pointed, and also can produce burr, so that needed further processing flash removed.
The object of the present invention is to provide a kind of method of processing the trough of belt sealing.This method may further comprise the steps: the sealing blank is provided, the rotatable groove forming-tool of installing is set, compress this forming-tool and form it and contact, make forming-tool and sealing blank relative motion so that on blank, form groove, and relative motion makes forming-tool rotate with the sealing blank.
Different with machining, owing to use the rotatable groove forming-tool of installing, form groove by squeezing action on material.Thereby the groove structure is smooth and generation is broken less with cracked possibility.The groove forming-tool preferably is contained in the roller of knife rest rotationally.
The groove forming-tool is made of hard material and has a cross section that cross section with required groove matches.And hard material Talide preferably.
With reference to the accompanying drawings, only by way of example, specific embodiments of the invention are described.
The method of sealing is processed in Fig. 1 to 4 expression by the present invention.
Fig. 5 represents by seal groove forming tool of the present invention in plane.
With reference to figure 1, cylindrical rod 1 is contained on the lathe chuck 2 rotationally.Cylindrical rod 1 is by dosing 5% glass and 5% molybdenum bisuphide (MOS 2) polytetrafluoroethylene (PTFE), PTFE constitutes.Overall diameter that this is excellent and interior diameter form in the processing of the turning in advance known to those skilled in the art.Lathe chuck 2 is around longitudinal center's axis 3 rotary cylinder rods 1.When chuck 2 rotated, groove forming tool 4 contacted with the annular flat end face 5 of rod 1 and axially is pressed into this material.
Cutter 4 radially inwardly moves gradually and moves to apart from the distance Y of axis 3 from the distance X of distance axis 3 towards axis 3.
During cutter 4 convergence Y, pressure is eliminated gradually so that to finish and form with axis 3 be the helicla flute at center along with the groove of gradual change.That is to say that when convergence Y, the degree of depth of groove reduces gradually.
As shown in Figure 2, cutter 4 has Talide roller 6.And roller 6 contour axles 7 are contained on the wheel carrier 8 rotationally.As the clearer demonstration of Fig. 3, wheel 6 has inclined-plane 9 to form the required cross section of groove 10.
Form seal by separating processing.In separating processing, cutting tool 11 is from this something lost harness shape beginning of the thickness Z of making seal of distance end face 5, towards radially inwardly motion of axis shown in Figure 43.For forming next sealing, previously described process is accurately processed and repeated to the end face that is cut of remaining blank smoothly.
Fig. 5 represents being preferably formed of seal groove forming-tool.It comprises knife rest 12.Knife rest 12 has the wheel carrier 13 that selectively rotates.Wheel carrier 13 is installed in an end by bearing pin 14.Wheel carrier 13 remains on by bearing pin in the groove 15 of cardinal principle circle of knife rest 12.Rotatable installation is four Talide rollers 16,17,18 and 19 on wheel carrier 13.When 16 whens wearing and tearing of wheel, clockwise rotate wheel carrier 13 up to untapped 17 appropriate locations that are in use of taking turns.Equally, replaceablely take turns 17, replaceablely take turns 18 with taking turns 19 with wheel 18.
In the examination alkali of two sealing 896-008-7280-00 manufactured according to the present invention, these sealings are used for sealing changes the axle of 120 ℃ of rotations of temperature with per minute 6,00.Employed lubricating oil is B.P.UF7, and after 400 hours, lubricating oil is not revealed through sealing.Finish after the test, in sealing, find the sign of the oil burnt.
Further test to check whether will repair groove by the squeezing action of forming-tool.
The sealing of making is placed in the air-oven of 200 ℃ of temperature 24 hours.The reparation that check seals material obviously seldom.

Claims (7)

1, the method for processing trough of belt sealing, it comprises makes the groove forming-tool contact with sealing blank end face, make and produce relative motion between this forming-tool and sealing blank on above-mentioned end face, to form groove, it is characterized in that, forming-tool (4) is installed around axle (7) rotationally, so that the relative motion between forming-tool (4) and end face (5) makes forming-tool (4) rotate around above-mentioned axle (7).
2, by the described method of claim 1, it is characterized in that, forming-tool (4) and sealing blank (1) rotate mutually around longitudinal axis (3), forming-tool (4) contacts with end face (5) along the blank (1) of the horizontal expansion of above-mentioned longitudinal axis (3), from around longitudinal axis (3) at above-mentioned end face (5) formation groove (1).
3,, it is characterized in that so that groove (1) is spiral shell when executing the form of groove, forming-tool (4) moves along the warp-wise of above-mentioned longitudinal axis (3) when forming-tool (4) opposing end surface (5) motion by the described method of claim 2.
By the described method of claim 3, it is characterized in that 4, by the relative motion of forming-tool (4) and end face (5), the degree of depth of groove (1) is changed along the direction that is parallel to above-mentioned longitudinal axis (3).
By the described method of arbitrary claim of claim 2 to 4, it is characterized in that 5, sealing blank (1) rotates around above-mentioned longitudinal axis (3).
6, press the described method of arbitrary claim of claim 2 to 5, it is characterized in that the end that is formed with the sealing blank (1) of groove (10) cuts off to make above-mentioned sealing and to stay new end face (5) to form the groove (10) of next sealing from sealing blank (1).
7, by the described method of arbitrary claim of aforesaid right requirement, it is characterized in that, groove forming-tool (4) has around above-mentioned axle (7) and is rotatably supported in roller (6) on the knife rest (8), and roller (6) is formed with an outer radial periphery profile that matches with groove (10) cross section.
CN 92114162 1991-11-29 1992-11-28 The method of processing sealing Pending CN1073386A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9125477A GB2261920B (en) 1991-11-29 1991-11-29 A method of making a seal
GB9125477.1 1991-11-29

Publications (1)

Publication Number Publication Date
CN1073386A true CN1073386A (en) 1993-06-23

Family

ID=10705481

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 92114162 Pending CN1073386A (en) 1991-11-29 1992-11-28 The method of processing sealing

Country Status (3)

Country Link
CN (1) CN1073386A (en)
GB (1) GB2261920B (en)
WO (1) WO1993010964A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705617B2 (en) * 2001-11-28 2004-03-16 Federal-Mogul World Wide, Inc. Hydrodynamic seal and method of making the same
DE202005006553U1 (en) 2005-04-22 2005-07-14 Vr Dichtungen Gmbh Radial shaft seal comprises membrane and support ring with centering section on its outer rim which press-fits into seal mounting and has wedge-shaped support section on its inner rim

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988738A (en) * 1931-05-25 1935-01-22 Charles E Johnson Process of making piston rings
FR1421558A (en) * 1964-11-05 1965-12-17 New process for modifying the outer shape of a plastic object and the internal tensions in this object
US3735615A (en) * 1970-05-19 1973-05-29 J Shneider Method of making grooves on surface of articles and device for its realization
US3857156A (en) * 1973-12-19 1974-12-31 Federal Mogul Corp Method of making tetrafluoroethylene sealing elements with hydrodynamic action
DE2421936B2 (en) * 1974-05-07 1976-06-10 Speidel-Kunststoffwerk Kg, 7404 Ofterdingen PROCESS FOR JOINT-TO-JOINT JOINT OF THE EDGES OF SPATIAL CURVED SHELL ELEMENTS MADE OF GLASS FIBER REINFORCED PLASTIC AND DEVICE FOR THEM
US3939551A (en) * 1975-02-04 1976-02-24 Federal-Mogul Corporation Method of making polytetrafluoroethylene sealing elements with hydrodynamic action
US4243235A (en) * 1979-07-02 1981-01-06 The Mather Company Composite polytetrafluoroethylene and elastomer lip seal
US4385429A (en) * 1979-07-18 1983-05-31 Dynetics, Inc. Method of manufacturing a clutch plate
US4450614A (en) * 1982-02-19 1984-05-29 Microdot Inc. Method of making a polytetrafluoroethylene hydrodynamic seal
US4542573A (en) * 1984-09-28 1985-09-24 The Fluorocarbon Company Method of producing a hydrodynamic seal
US5048382A (en) * 1989-08-23 1991-09-17 Mar Don Corporation Method for making elastomeric sealing device

Also Published As

Publication number Publication date
GB2261920A (en) 1993-06-02
GB2261920B (en) 1995-04-26
WO1993010964A1 (en) 1993-06-10
GB9125477D0 (en) 1992-01-29

Similar Documents

Publication Publication Date Title
US4542573A (en) Method of producing a hydrodynamic seal
US4497496A (en) Hydrodynamic slitted seal and method of manufacture thereof
CN1078118C (en) Method of electrochemically machining a bearing ring and a bearing comprising said electrochemically machined bearing ring
US1854897A (en) Method of making bearing rings
CN1073386A (en) The method of processing sealing
US5899131A (en) Apparatus and method for providing pockets in a roller cage of a bearing assembly and a roller cage produced by such an apparatus and method
CN114986102B (en) Outer guide ring and forming method thereof
CN101701605A (en) High-speed silent precision bearing retainer and manufacturing method thereof
CA2308998C (en) Method for making rotors
US20250092914A1 (en) Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle
CN100398859C (en) Technology for mfg. small ball-bearing
CN1087040A (en) Machining is by the right method of the wheel that friction roller drives and the machine of implementation method
CN1759988A (en) Method for profiling elliptical cam
JPH10113832A (en) Manufacture of dynamic pressure fluid beaking
WO2022163642A1 (en) Press-molded article, rolling bearing, vehicle, machine, method for manufacturing press-molded article, method for manufacturing rolling bearing, method for manufacturing vehicle, and method for manufacturing machine
US3905217A (en) Apparatus for producing an annular corrugated spring
CN221391360U (en) Knife rest structure is cut to no sudden strain of a muscle that flashes
CN110977626A (en) Method for machining end faces of double-end-face asymmetric bearing
CN220770079U (en) Rubber tyre for transmission
US1329271A (en) Method of manufacturing piston-rings
CN217519210U (en) Oil seal and jig for processing same
KR100234562B1 (en) Method for making grooves in the journal of the workpiece or at the end of the shaft or shaft
CN113385706B (en) Method for machining regular polygon inner hole
SU1706842A1 (en) Method of making seals
KR20010102623A (en) Forming process of helical gear and apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication