DE3533831C1 - Enclosed (encapsulated) measuring device - Google Patents
Enclosed (encapsulated) measuring deviceInfo
- Publication number
- DE3533831C1 DE3533831C1 DE19853533831 DE3533831A DE3533831C1 DE 3533831 C1 DE3533831 C1 DE 3533831C1 DE 19853533831 DE19853533831 DE 19853533831 DE 3533831 A DE3533831 A DE 3533831A DE 3533831 C1 DE3533831 C1 DE 3533831C1
- Authority
- DE
- Germany
- Prior art keywords
- sealing
- measuring device
- housing
- driver
- profiles
- 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.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 3
- 239000002826 coolant Substances 0.000 claims abstract 4
- 239000000314 lubricant Substances 0.000 claims abstract 4
- 230000000704 physical effect Effects 0.000 claims abstract 3
- 230000007774 longterm Effects 0.000 claims abstract 2
- 238000005299 abrasion Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 2
- 230000000717 retained effect Effects 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34746—Linear encoders
- G01D5/34761—Protection devices, e.g. caps; Blowing devices
- G01D5/34769—Sealing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Die Anordnung und Ausgestaltung der Abdeckele- mente gemäß dem Hauptpatent weist demgegenüber bereits erhebliche Vorteile auf, da die Anforderungen an die verschiedenen Funktionen bereits durch mehrteilige Abdeckelemente erfüllt sind. The arrangement and design of the cover element ments according to the main patent already has significant advantages, since the Requirements for the various functions already due to multi-part cover elements are fulfilled.
Diese Anforderungen an die Funktionen sind: 1. geringe Reibung und Abriebfestigkeit für das Zusammenwirken von Dichtelementen und Mitnehmer; 2. Dauerelastizität und Formstabilität zur Gewährleistung der sicheren Schließung der Abdeckelemente über dem Längsschlitz 3. These functional requirements are: 1. Low friction and Abrasion resistance for the interaction of sealing elements and drivers; 2. Permanent elasticity and dimensional stability to ensure the secure closure of the cover elements above the longitudinal slot 3.
Als besonders günstig hinsichtlich dieser Anforderungen zeigen sich die mehrteiligen Abdeckelemente gemäß der F i g. 1 bis 3. Gemäß F i g. 1 werden die Dichtprofile 10 und 11 von Rundschnüren aus Teflon gebildet, wobei auf einer Seite eine Rundschnur 10 und auf der Gegenseite eine Doppelrundschnur 11 in zugehörigen Stützprofilen 10' und 11' angebracht sind. Die Abdichtung verbessert sich dadurch, daß die einzelne Rundschnur 10 in der durch die Doppelrundschnur 11 gebildeten Mulde liegt. Die Stützprofile 10' und 11' können aus Elastomer bestehen. Da die Einzel-Rundschnur 10 eine andere Biegesteifigkeit aufweist, als die Doppelrundschnur 11, wird der Querschnitt des Mitnehmers 7 entsprechend den sich bei der Verformung der Abdeckelemente 10, 10' und 11, 11' ergebenden Biegelinien angepaßt, so daß sich in der Regel ein unsymmetrischer Querschnitt für den Mitnehmer 7 ergibt. They are found to be particularly favorable with regard to these requirements the multi-part cover elements according to FIG. 1 to 3. According to FIG. 1 become the sealing profiles 10 and 11 formed by round cords made of Teflon, on one Side a round cord 10 and on the other side a double round cord 11 in associated Support profiles 10 'and 11' are attached. The seal is improved by that the single round cord 10 in the trough formed by the double round cord 11 lies. The support profiles 10 'and 11' can consist of elastomer. Because the single round cord 10 has a different flexural rigidity than the double round cord 11, the Cross section of the driver 7 corresponding to the deformation of the cover elements 10, 10 'and 11, 11' are adapted to the resulting bending lines, so that, as a rule, a asymmetrical cross-section for the driver 7 results.
Die in den F i g. 2 und 3 dargestellten Varianten geben weitere vorteilhafte Ausgestaltungen der Abdeckelemente an. Bauteile, die gegenüber der Anordnung gemäß F i g. 1 gleichartig sind, tragen das gleiche Bezugszeichen, dem eine von der Figurennumerierung abhängige Indexziffer angehängt ist. The in the F i g. 2 and 3 shown variants give further advantageous Refinements of the cover elements. Components that are compared to the arrangement according to F i g. 1 have the same reference number as one of the numbering of the figures dependent index number is attached.
In der Anordnung nach Fig.2 wird ein Dichtprofil von einem Formteil 102 aus Teflon oder dgl. gebildet, das von einem Stützprofil 102' aus einem Elastomer getragen wird Das Dichtprofil 102 weist eine ähnliche Mulde in Längserstreckung auf, wie sie sich bei der Doppelrundschnur 11 nach Fig. 1 ergibt. In die Mulde des Dichtprofils 102 greift ein Gegenprofil als Dichtprofil 112 ein, das aus einem Lagermetall,- etwa Bronze bestehen kann. Eine hinreichende Biegsamkeit wird durch entsprechende Dimensionierung erzielt, wobei wegen der unterschiedlichen Biegesteifigkeit der beiden Dichtprofile 102 und 112 der Querschnitt des Mitnehmers 72 wieder durch einen unsymmetrischen Querschnitt angepaßt wird. In the arrangement according to Figure 2, a sealing profile is from a molded part 102 made of Teflon or the like. Formed by a support profile 102 'made of an elastomer The sealing profile 102 has a similar trough in the longitudinal direction on, as it results in the double round cord 11 according to FIG. In the hollow of the Sealing profile 102 engages a counter profile as sealing profile 112, which is made of a bearing metal, about bronze can exist. Sufficient flexibility is ensured by appropriate Sizing achieved, because of the different rigidity of the two sealing profiles 102 and 112, the cross section of the driver 72 again through one asymmetrical cross-section is adapted.
In dem Beispiel gemäß F i g. 3 wird ein Dichtprofil 103 von einem Stahlband gebildet, das auf sein Stützprofil 103' aufvulkanisiert ist. Das Gegenstück bildet ein pilzförmiges Dichtprofil 113, das in sein zugehöriges Stützprofil 113' eingepaßt ist. Das pilzförmige Dichtprofil 113 ist vorteilhaft wieder aus Teflon angefertigt, wohingegen die beiden Stützprofile 103' und 113' aus einem Elastomer bestehen. In the example according to FIG. 3 is a sealing profile 103 of a Steel band formed, which is vulcanized onto its support profile 103 '. The counterpart forms a mushroom-shaped sealing profile 113, which is inserted into its associated support profile 113 ' is fitted. The mushroom-shaped sealing profile 113 is again advantageously made of Teflon made, whereas the two support profiles 103 'and 113' made of an elastomer exist.
Die Materialpaarung kann selbstverständlich auch von den beschriebenen Beispielen abweichen, sofern sie für die Nutzung unter den vorstehenden Bedingungen geeignet ist. The material pairing can of course also differ from those described Examples differ provided that they are valid for use under the conditions above suitable is.
In F i g. 4 wird schließlich die Anordnung aus F i g. 3 entlang der Schnittlinie IV/IV gezeigt Die vorbeschriebenen unsymmetrischen Querschnitte der Mitnehmer werden hier am Mitnehmer 73 verdeutlicht, und es ist auch die beidseitige Verjüngung des Querschnittes in Längserstreckung zu erkennen. In Fig. 4 finally the arrangement from FIG. 3 along the Section line IV / IV shown the above-described asymmetrical cross-sections of the Carriers are shown here on carrier 73, and it is also the two-sided one Recognize tapering of the cross-section in the longitudinal direction.
Um die Biegsamkeit der Dichtprofile zu erhöhen, lassen sich an ihren den jeweiligen Dichtflächen entgegenliegenden Profilteilen in an sich bekannter Weise noch Ausklinkungen vornehmen. Ferner sind die Stützkräfte, die die Stützprofile aufbringen, durch einstellbare Druckluftzuführung veränderbar. In order to increase the flexibility of the sealing profiles, you can adjust their the respective sealing surfaces opposite profile parts in known per se Way to make notches. Furthermore, the support forces that the support profiles apply, can be changed by adjustable compressed air supply.
- Leerseite -- blank page -
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853533831 DE3533831C1 (en) | 1985-09-23 | 1985-09-23 | Enclosed (encapsulated) measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853533831 DE3533831C1 (en) | 1985-09-23 | 1985-09-23 | Enclosed (encapsulated) measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3533831C1 true DE3533831C1 (en) | 1986-04-17 |
Family
ID=6281668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853533831 Expired DE3533831C1 (en) | 1985-09-23 | 1985-09-23 | Enclosed (encapsulated) measuring device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3533831C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0254814A1 (en) * | 1986-07-11 | 1988-02-03 | Dr. Johannes Heidenhain GmbH | Sealed measuring device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3410944C1 (en) * | 1984-03-24 | 1985-05-09 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Encapsulated measuring device |
-
1985
- 1985-09-23 DE DE19853533831 patent/DE3533831C1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3410944C1 (en) * | 1984-03-24 | 1985-05-09 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Encapsulated measuring device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0254814A1 (en) * | 1986-07-11 | 1988-02-03 | Dr. Johannes Heidenhain GmbH | Sealed measuring device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
AF | Is addition to no. |
Ref country code: DE Ref document number: 3410944 Format of ref document f/p: P |
|
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |