GB596379A - - Google Patents
Info
- Publication number
- GB596379A GB596379A GB596379DA GB596379A GB 596379 A GB596379 A GB 596379A GB 596379D A GB596379D A GB 596379DA GB 596379 A GB596379 A GB 596379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- teeth
- wheel
- axis
- circle
- radius
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
596,379. Making gear-type pumps. EATON MANUFACTURING CO. Oct. 24, 1944, No. 20613. Convention date, June 1. [Classes 83 (ii) and 83 (iii)] [Also in Group XXVI] In the production of gear-type fluid pumps consisting of inner and outer toothed. members 10, 12, Fig. 1, wherein the outer member has one tooth more than the inner member and rotates on an axis 20 eccentric to the axis of rotation 18 of the inner member, the outer member has teeth 16 formed as circular arcs and the teeth 14 of the inner member are generated by a rotary cutter having a radius equal to that of the teeth 16 and moved bodily with a rolling circle which rolls on a base circle concentric with the inner member, the ratio of diameters of the base and rolling circles being equal to the number of teeth 14. In setting out the form of the teeth 14 where the wheel 10 has six teeth and the wheel 12 has seven teeth, a base circle B\ Fig. 2, having a centre 18 and a radius B is selected and the rolling circle R<1> having a radius R one-sixth of B is made to roll thereon. A point P on a circle E<1 >having a radius E equal to the eccentricity of the wheels 10, 12, rolls with the circle R<1> and traces out a cycloid GP which forms the locus of the centre P of the generating circle G<1>. The circumference of the latter then traces out the enveloping surface 14 of the required tooth. The Specification describes in detail the method of determining the dimensions B, E, G, R<1> and R for a pump of given capacity and overall dimensions having teeth which have a flat contact between them, a small pressure angle and minimum slip and which provide clearance at 82 to prevent jamming by foreign matter in the fluid being pumped. The teeth 16 of the outer wheel 12 are formed by a broaching or other machining operation using a form cutter, and teeth 14 are generated by a milling or grinding tool. In the former method, a cylindrical milling-cutter has a radius G equal to that of the generating circle and whilst being rotated about its own axis P, this axis is caused to rotate on a radius E while the wheel 10 rotates on its own axis 18, the ratio of these last two rotations being equal to the number of teeth to be generated in the wheel 10, the cutter thus tracing out the tooth curve 14. When generating by grinding a grinding-wheel 64, Fig. 3, is used, rotating on an axis 66 transverse to that of the work 10, and having an arcuate edge 68 of radius equal to that of the generating circle G. The wheel 10 is carried by a spindle 40 rotated in a bearing 42 through a shaft 46 from an electric motor 50, the spindle and shaft being connected by an Oldham coupling 52. The bearing 42 is rotated in a block 44 about an axis eccentric to the axis of spindle 40 by the amount E and is driven by gearing 56, 58, 60, 62 from the shaft 46 at a speed six times that of the spindle for a sixtoothed workpiece 10, the grinding-wheel axis being reciprocated in the direction of arrow 70 to traverse the thickness of the work. In each method of generation, the work may perform several revolutions and the cutter or grinding- wheel be fed in after each revolution until the finished size is attained.
Publications (1)
Publication Number | Publication Date |
---|---|
GB596379A true GB596379A (en) | 1900-01-01 |
Family
ID=1749331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB596379D Expired GB596379A (en) |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB596379A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1078410B (en) * | 1955-10-11 | 1960-03-24 | Jacques Jean Caubet | Device for continuous machining of the externally toothed inner wheel of an interlocking gear pair with the tooth profile of a hypocycloid |
US3168049A (en) * | 1961-09-26 | 1965-02-02 | Mono Pumps Africa Pty | Helical gear pumps |
JPS5037092A (en) * | 1973-08-08 | 1975-04-07 | ||
EP1380753A2 (en) * | 2002-07-10 | 2004-01-14 | Mitsubishi Materials Corporation | Internal gear oil pump rotor |
EP2740937A1 (en) | 2004-09-20 | 2014-06-11 | Magna Powertrain Inc. | Pump with selectable outlet pressure |
-
0
- GB GB596379D patent/GB596379A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1078410B (en) * | 1955-10-11 | 1960-03-24 | Jacques Jean Caubet | Device for continuous machining of the externally toothed inner wheel of an interlocking gear pair with the tooth profile of a hypocycloid |
US3168049A (en) * | 1961-09-26 | 1965-02-02 | Mono Pumps Africa Pty | Helical gear pumps |
JPS5037092A (en) * | 1973-08-08 | 1975-04-07 | ||
EP1380753A2 (en) * | 2002-07-10 | 2004-01-14 | Mitsubishi Materials Corporation | Internal gear oil pump rotor |
EP1380753A3 (en) * | 2002-07-10 | 2006-04-19 | Mitsubishi Materials Corporation | Internal gear oil pump rotor |
EP2740937A1 (en) | 2004-09-20 | 2014-06-11 | Magna Powertrain Inc. | Pump with selectable outlet pressure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3518443B2 (en) | Machining method | |
CN102939179B (en) | The processing method of concave-convex gear and processing unit (plant) | |
US3856440A (en) | Rotor pair for positive fluid displacement | |
US4058938A (en) | Method and apparatus for grinding the tooth flanks of internally-toothed gear wheels | |
JPH0994718A (en) | Grinding tool for gear tooth of pair of spiral bevel gears and method for manufacturing the same | |
EP0602038A1 (en) | Method of and apparatus for machining spur and helical gears. | |
US7431635B2 (en) | Internal gear grinding method | |
US20120294687A1 (en) | Stator Manufacturing Method and Whirling Cutter Device | |
US3782040A (en) | Gear machine | |
US4650378A (en) | Method for machining a gear by means of a rotating gear-type tool | |
GB596379A (en) | ||
US1798059A (en) | Machine for making rotors | |
JPH09500581A (en) | Work tool for producing crown gears capable of meshing with small gears with beveled teeth and method for producing such crown gears | |
CN101362230B (en) | External-gearing honing cylindrical gear machine-tool and method | |
US2665612A (en) | Device for producing internally toothed ring gears and the like | |
US3623829A (en) | Internal gear set | |
US2151483A (en) | Rotor generating method and machine | |
WO2022242684A1 (en) | Planar double-enveloping toroidal worm gear set and manufacturing method therefor | |
US1997227A (en) | Rotor cutting machine | |
US3180229A (en) | Method for forming rotors | |
WO2013019306A1 (en) | A stator of a gerotor device and a method for manufacturing roller pockets in a stator of a gerotor device | |
RU2374045C2 (en) | Method for finishing treatment of conical gear wheels | |
US2200584A (en) | Method of simultaneously finishing cluster gears | |
US6617367B1 (en) | Internally generated rotor set for low viscosity and abrasive metering applications | |
CN101709729B (en) | Cycloidal engagement pair with uniform-gap engagement of full hydraulic steering gear and processing method thereof |