GB1467857A - Transmission mechanism employing magnetic attraction - Google Patents
Transmission mechanism employing magnetic attractionInfo
- Publication number
- GB1467857A GB1467857A GB4970374A GB4970374A GB1467857A GB 1467857 A GB1467857 A GB 1467857A GB 4970374 A GB4970374 A GB 4970374A GB 4970374 A GB4970374 A GB 4970374A GB 1467857 A GB1467857 A GB 1467857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- teeth
- sector
- wheel
- toothed
- shaft
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
-
- 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
- F16H—GEARING
- F16H49/00—Other gearings
- F16H49/005—Magnetic gearings with physical contact between gears
-
- 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
- G01D5/02—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 using mechanical means
- G01D5/06—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 using mechanical means acting through a wall or enclosure, e.g. by bellows, by magnetic coupling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
1467857 Magnetic gearing Z G BLJUMSHTEIN and S V DMITRIEV 16 Nov 1974 49703/74 Heading F2Q In a gear mechanism, Figs. 5, 6, particularly for use in a fluid pressure indicating instrument, a frame comprising plates 1 and spacers 2 rotatably supports a driven toothed wheel 7 and a driving toothed sector 6, on axes such that no mechanical contact between the mutually opposing teeth can occur, and two permanent magnets 9, together with L-shaped magnetic yoke members 12, are fixed to the frame and provide magnetic flux through two flux paths, jointly passing through the air-gap between the teeth of wheel 7 and sector 6, which are each composed of a soft ferromagnetic material, thereby deriving a magnetic pull between the opposing teeth and permitting torque to be transmitted between them. Wheel 7 is mounted on a shaft 8 which may carry an indicating pointer, and sector 6 is adjustably mounted by screws 14 on a drive link 5, pivoted on a shaft 4, and which may be driven by the displacement of an aneroid, membrane or Bourdon tube pressure sensor. Two additional magnets 15 may optionally be fitted as a means of reducing friction at the bearings of shaft 8, by compensating for the radial magnetic force on the teeth. In an alternative embodiment, Figs. 11, 12, a permanent magnet 31 is mounted between two concave driving toothed sector members 29, jointly opposing a broad-faced toothed wheel 7, and providing a single and compact magnetic flux path, through an air-gap which may be adjusted by means of an eccentric screwed bush 32 carrying the sector pivot shaft 4. In further alternative embodiments, a single permanent magnet may be fixedly supported centrally between twin toothed sector members which may have inwardly-facing contrate teeth or bevel teeth, opposed to the end faces of a piniontype toothed driven wheel. A partition of diamagnetic material may be placed in the airgap between the teeth, as a sealing wall around the sensor element forming a protection against explosion. The toothed sector may have progressive variations in the pitches between adjacent teeth along its arc, as a means of providing a non-linear scale law relating output indication to sensor displacement, or alternatively, as a means to linearize the scale law of a sensor whose displacement with pressure is non-linear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4970374A GB1467857A (en) | 1974-11-16 | 1974-11-16 | Transmission mechanism employing magnetic attraction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4970374A GB1467857A (en) | 1974-11-16 | 1974-11-16 | Transmission mechanism employing magnetic attraction |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1467857A true GB1467857A (en) | 1977-03-23 |
Family
ID=10453259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4970374A Expired GB1467857A (en) | 1974-11-16 | 1974-11-16 | Transmission mechanism employing magnetic attraction |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1467857A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0445162A1 (en) * | 1988-11-25 | 1991-09-11 | Cry-O-Tech International, Inc. | Magnetic linkage for bourdon tube gauges |
RU2468488C1 (en) * | 2011-03-18 | 2012-11-27 | Олег Фёдорович Меньших | Conversion device of energy of rotational movement to translational movement |
US9995605B2 (en) * | 2015-04-16 | 2018-06-12 | Prospine Co., Ltd. | Pressure gauge |
CN108179597A (en) * | 2017-12-18 | 2018-06-19 | 青岛海尔洗衣机有限公司 | A kind of washing machine |
CN111250449A (en) * | 2020-03-18 | 2020-06-09 | 博众精工科技股份有限公司 | Assembly line equipment for automatically cleaning workpiece and dustless treatment method for surface of workpiece |
CN112815069A (en) * | 2021-03-24 | 2021-05-18 | 杨楚斌 | Sector gear |
-
1974
- 1974-11-16 GB GB4970374A patent/GB1467857A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0445162A1 (en) * | 1988-11-25 | 1991-09-11 | Cry-O-Tech International, Inc. | Magnetic linkage for bourdon tube gauges |
EP0445162A4 (en) * | 1988-11-25 | 1992-01-08 | Cry-O-Tech International, Inc. | Magnetic linkage for bourdon tube gauges |
RU2468488C1 (en) * | 2011-03-18 | 2012-11-27 | Олег Фёдорович Меньших | Conversion device of energy of rotational movement to translational movement |
US9995605B2 (en) * | 2015-04-16 | 2018-06-12 | Prospine Co., Ltd. | Pressure gauge |
DE112016001765B4 (en) | 2015-04-16 | 2023-03-02 | Okada Keiki Mfg. Co., Ltd. | pressure gauge |
CN108179597A (en) * | 2017-12-18 | 2018-06-19 | 青岛海尔洗衣机有限公司 | A kind of washing machine |
CN111250449A (en) * | 2020-03-18 | 2020-06-09 | 博众精工科技股份有限公司 | Assembly line equipment for automatically cleaning workpiece and dustless treatment method for surface of workpiece |
CN111250449B (en) * | 2020-03-18 | 2023-09-05 | 博众精工科技股份有限公司 | Assembly line equipment for automatically cleaning workpiece and dust-free treatment method for workpiece surface |
CN112815069A (en) * | 2021-03-24 | 2021-05-18 | 杨楚斌 | Sector gear |
CN112815069B (en) * | 2021-03-24 | 2022-04-29 | 台州富特传动机械有限公司 | Sector gear |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Free format text: FOR 1467957 READ 1467857 IN JOURNAL NO. 4921,PAGE 2038. |