子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Internal bevel gear | US14912411 | 2014-08-27 | US10016825B2 | 2018-07-10 | Markus J. Bolze; Hermann J. Stadtfeld |
| A method of machining a bevel gear (22) having teeth with a pitch angle greater than 90 degrees comprising providing at least one tool (42, 44) rotatable about a tool axis with the tool comprising a disc-shaped body (43) having a periphery (49) and at least one stock removing surface (45, 47) arranged about the periphery. The tool is rotated and fed relative to the gear to effect machining of at least one tooth surface wherein the machining is carried out in a non-generating manner. | ||||||
| 62 | GEAR HOBBING CUTTER WITH NON-CONSTANT WHOLE DEPTHS | US15363094 | 2016-11-29 | US20170072486A1 | 2017-03-16 | Benjamin S. Sheen |
| A gear hobbing apparatus for producing a gear from a blank according to one example of the present disclosure can include a hob, a first series of hob teeth and a second series of hob teeth. The hob can have a cylindrical hob body. The first series of hob teeth can extend from the cylindrical hob body and have a first whole depth. The second series of hob teeth can alternately extend from the cylindrical hob body with the first series of hob teeth and have a second whole depth. The first and second whole depths are distinct and configured to create a gear from the blank that has adjacent teeth having distinct outer diameters. | ||||||
| 63 | ENVELOPING SPIROID GEAR ASSEMBLIES AND METHOD OF MANUFACTURING THE SAME | US13467445 | 2012-05-09 | US20130061704A1 | 2013-03-14 | Shawn M. Green; DuWayne R. Cookman; James H. Pospisil |
| A gear assembly includes a single piece gear body having a first axis of rotation and including opposing first and second surfaces each having spiroid gear teeth formed therein. The gear teeth radially extend outward from the first axis of rotation. The gear teeth on the first surface also extend from the first surface toward the second surface and the gear teeth on the second surface also extend from the second surface toward the first surface. The gear teeth on the first surface and the gear teeth on the second surface are configured to concurrently engage teeth of a pinion such that rotation of the pinion is translated to rotation of the gear body around the first axis of rotation. | ||||||
| 64 | PROCESSING METHOD FOR CONCAVE-CONVEX GEAR | US13578729 | 2011-02-10 | US20120309272A1 | 2012-12-06 | Yoshiaki Ando; Masayuki Takeshima; Ikuko Hirota |
| A relative movement trajectory of each convex tooth pin of a mating gear with respect to a concave-convex gear at the time when torque is transmitted between the mating gear and the concave-convex gear (nutation gear) may be expressed by a first linear axis, a second linear axis, a third linear axis, a fourth rotation axis, a fifth rotation axis and a sixth indexing axis. Then, a relative movement trajectory of each convex tooth pin of the mating gear, expressed by the first linear axis, the second linear axis, the third linear axis, the fifth rotation axis and the sixth indexing axis in the case where the fourth rotation axis is brought into coincidence with the sixth indexing axis, is calculated, and at least one of a disc-shaped workpiece and a working tool is moved on the basis of the calculated relative movement trajectory. | ||||||
| 65 | Composite gear and method of manufacturing the same | US10590233 | 2005-02-24 | US07628091B2 | 2009-12-08 | Yota Mizuno; Mitsuyasu Ukita |
| A composite gear, wherein an external gear and a rotation Support surface are formed on the outer peripheral surface thereof and a first internal gear and a second internal gear are formed on the inner peripheral surface thereof at a predetermined interval in the rotating axis direction. A chuck portion is formed on the inner peripheral surface between the first terminal gear and the second internal gear, and the inner diameter of the chuck portion is smaller than at least one of the diameter of the tip of the first internal gear and the diameter of the tip of the second internal gear. | ||||||
| 66 | METHOD AND APPARATUS FOR WORKING A SCREW ROTOR, END MILL FOR WORKING , AND METHOD OF MANUFACTURING A SCREW COMPRESSOR | US12170551 | 2008-07-10 | US20090217528A1 | 2009-09-03 | Tomoaki NAKASUJI; Yusaku Miyamoto; Yasunori Matsumoto; Tetuji Kawakami |
| A method of improving working of grooves of a screw rotor, in particular, working of grooves side in working efficiency, a working apparatus, a working tool, and a method of manufacturing a screw compressor are provided. A method of controlling rotation of a work and turning of a tool at a time to form a screw tooth space based on a five-axis NC machine, and a special end mill having a cutting edge of a short length and a neck portion provided between the cutting edge and a shank portion to be made thin is used to perform working in grooves side finish working process. | ||||||
| 67 | Method for Cutting Worm and Worm Wheel in a Worm-Gear Reduction Unit with Circulation of Bearing Balls, and Related Cutting Tools | US10592977 | 2005-03-14 | US20080273935A1 | 2008-11-06 | Pietro Salvini; Domenico Serpella; Francesco Vivio; Vincenzo Vullo |
| A method for cutting worm and worm wheel in a worm-gear reduction unit (1) with circulation of bearing balls, comprising the steps of: (a) obtaining races (30) for the bearing balls (4) onto the worm wheel (3); and (b) obtaining races (20) for the bearing balls (4) onto the worm (2), wherein step (b) provides the cutting of the races (20) according to a cutting profile substantially corresponding to the envelope of the subsequent positions assumed by the bearing balls within the worm wheel races being formed. | ||||||
| 68 | Composite gear and method of manufacturing the same | US10590233 | 2005-02-24 | US20070180696A1 | 2007-08-09 | Yota Mizuno; Mitsuyasu Ukita |
| A composite gear, wherein an external gear and a rotation support surface are formed on the outer peripheral surface thereof and a first internal gear and a second internal gear are formed on the inner peripheral surface thereof at a predetermined interval in the rotating axis direction. A chuck portion is formed on the inner peripheral surface between the first internal gear and the second internal gear, and the inner diameter of the chuck portion is smaller than at least one of the diameter of the tip of the first internal gear and the diameter of the tip of the second internal gear. | ||||||
| 69 | Gear tooth profile | US10420141 | 2003-04-22 | US06964210B2 | 2005-11-15 | John R. Colbourne |
| A gear and method for producing the gear. The gear has a gear tooth profile conjugate to a gear basic-cutter tooth-profile having an addendum with a convex portion having an addendum point proximal to a pitch line and a dedendum with a concave portion having a dedendum point proximal to the pitch line. The convex portion is complementary with a corresponding portion of a mating-gear basic-cutter tooth-profile dedendum. The concave portion is complementary with a corresponding portion of the mating-gear basic-cutter tooth-profile addendum. A transition zone between the addendum point and the dedendum point has a predetermined width. The gear basic-cutter tooth-profile has a predetermined half pitch relief at the pitch line and continuity of profile and continuity of slope at the addendum point. | ||||||
| 70 | Gear tooth profile | US10420141 | 2003-04-22 | US20030198526A1 | 2003-10-23 | John R. Colbourne |
| A gear and method for producing the gear. The gear has a gear tooth profile conjugate to a gear basic-cutter tooth-profile having an addendum with a convex portion having an addendum point proximal to a pitch line and a dedendum with a concave portion having a dedendum point proximal to the pitch line. The convex portion is complementary with a corresponding portion of a mating-gear basic-cutter tooth-profile dedendum. The concave portion is complementary with a corresponding portion of the mating-gear basic-cutter tooth-profile addendum. A transition zone between the addendum point and the dedendum point has a predetermined width. The gear basic-cutter tooth-profile has a predetermined half pitch relief at the pitch line and continuity of profile and continuity of slope at the addendum point. | ||||||
| 71 | Rack-pinion steering gear and method for cutting rack teeth | US763872 | 1985-08-07 | US4573372A | 1986-03-04 | Michio Abe |
| This invention pertains to a rack and pinion type steering gear for an automobile and a method for cutting rack teeth in the gear. The gear comprises a housing, a pinion rotatably supported within the housing and operatively connected to a steering wheel and a rack bar supported within the housing for slidable movement in the axial direction and rotation and provided with rack teeth in engagement with the pinion. The rack teeth are formed on the rack and along a varying pitch line so that the axial movement amount of the rack varies as the pinion rotates. | ||||||
| 72 | Machine for manufacturing variable ratio racks | US881911 | 1978-02-27 | US4193722A | 1980-03-18 | Arthur E. Bishop |
| A machine for the manufacture of variable ratio racks such as are used in the steering gear of cars, the machine having a plurality of pairs of broaching blades and a holding fixture for holding at least one rack blank so that it can be indexed about a central point of the rack. The machine is arranged so that as either the broach blades are moved past the rack blank or the rack blank is moved past the broach blades pairs of corresponding teeth on each side of the center line are formed simultaneously, the rack blank being indexed to an angle to suit the angle of inclination of a pair of teeth about to be cut to the longitudinal axis of the rack. The machine produces a rack blank in which pairs of teeth of different form and different angular inclination are formed to a shape closely approximating the final shape of the teeth which is achieved by an additional step such as pressing or machining. | ||||||
| 73 | Method of and apparatus for cutting circular variable pitch gear | US46016274 | 1974-04-11 | US3910158A | 1975-10-07 | YAGI KENJI; KIDOKORO SUSUMU |
| A gear-blank moving at a variable angular velocity is cut by a cutter moving at a constant speed in an apparatus providing very accurate and inexpensive cutting of such a gear.
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| 74 | Toothed coupling for rotatable members | US24155072 | 1972-04-06 | US3803872A | 1974-04-16 | WOLF A |
| A toothed (spline) coupling for torque transmission between rotatable members comprises a sleeve formed as an internal gear (toothed body) snugly receiving an externally toothed wheel. The teeth of the sleeve define a pitch annulus deviating from the circular and coinciding with the pitch circle of the inner externally toothed gear in three locations equispaced around the coupling''s rotation axis, i.e. at angles of 120*. Except at these three locations the pitch annulus of the sleeve lies outside the inner gear''s pitch circle. In this manner only three teeth of the inner gear fit snugly into the splines of the sleeve. On application of torque to the coupling the sleeve deforms and most of the teeth of the gear fit into the splines for best torque transmission. It is also possible to form the gear wheel with three teeth lying on a pitch circle and all of its other teeth lying slightly inside this circle. In such an arrangement the teeth and splines are spaced at up to 60* from one another.
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| 75 | Method and apparatus for manufacturing toothed machine elements | US38650664 | 1964-07-31 | US3259019A | 1966-07-05 | BIBBENS WILLIAM H |
| 76 | Method of making a one piece integral/composite gear | US25116863 | 1963-01-14 | US3248782A | 1966-05-03 | MOONEY GEORGE M |
| 77 | Lapping machine | US19027762 | 1962-04-26 | US3159946A | 1964-12-08 | SHENK ROBERT H; GEORGE SHEA |
| 78 | Grinding apparatus | US8453961 | 1961-01-24 | US3121297A | 1964-02-18 | BRADY SAMUEL G; WILHELM DRALLE |
| 921,600. Grinding-machines. MICHIGAN TOOL CO. Dec. 29, 1961 [Jan. 24, 1961], No. 46773/61. Class 60. A method of grinding oppositely disposed surfaces comprises the rotation of a tool between the surfaces, which are engaged by it successively, the tool passing along each surface alternately, and decreasing the distance from the tool axis to the surfaces at each pass, the amount of decrease being the same for each surface. As applied to grinding the concave arcuate grooves 16, Fig. 4, of a portion 13 of a universal joint, the grinding wheel 22 is rotated about an axis at right angles to the grooves, the axis itself describing circles of increasing diameter about a central point 23, Fig. 5, which is coincident with the axis XX of the shaft of the workpiece 11 and with the common centre of curvature of the grooves 16. A movement of the wheel axis from the centre 23 to the left along the line 21 takes place each time the wheel axis reaches the relieved portion 18, Fig. 4, on a line 28 so that as the wheel periphery approaches the upper surface an increment of feed is applied, the wheel axis continuing its orbit at this radius through the lower face until, at line 23, a further increment of feed is applied, the cycle being repeated until the required depth of groove has been ground or the tool is to be changed for a finishing cut, when the wheel axis is centralized between the upper and lower faces of the work and withdrawn therefrom along the line 21. After the completion of one pair of opposed grooves the work, which is held in a chuck, is indexed to bring it into position for grinding the next pair. The grinding wheel housing 53 is mounted on a slide 44 carried by a bed 45 which, at its opposite end 61, is supported by rollers 62 on the machine base 39; an arm 64 extends from the side of the slide 44 and is pivotally attached at its forward end 65 to a member 89, Fig. 8, forming the crank-pin of an adjustable-throw " crank " 82; the axis 68 of the crank-pin is coaxial with that of the grinding wheel spindle 41, when the wheel is in its forward or working position, so that the wheel axis follows the same orbital path as the crank-pin and thus the depth of cut may be adjusted by altering the throw of the " crank 82. This is effected by the mechanism shown in Fig. 8 in which the Z- shaped end 93 of an axially adjustable bar 92 engages rollers 85, 86 carried by the " crank " 82, whereby the throw may be varied by sliding it radially in dovetailed guides 83 across the face of the flanged end 81 of a hollow shaft 71 driven through worm gearing 74 by an hydraulic motor 75. The grinding wheel 'spindle 14 is also driven by an hydraulic motor 49 through belts 51, Figs. 6 and 14, the motor being adjustably mounted on the slide 44. The driving and grinding head assembly is retractable with the slide by a piston 48 to a position in which the periphery of the wheel may be dressed by a tool carried by a swinging arm on a bracket 56 and having provision for vertical adjustment by a cylinder 58. The axial adjustment of the feed-controlling bar 92 is effected by the mechanism shown in Figs. 11 and 12. A nut 99 is rotatable by ratchet means 101 in a housing 97 to shift a screwed shaft 109 coaxial with the bar and attached thereto by a coupling member 111. The housing 97 is also slidable in the same sense, on a portion 98 of the machine bed, by means of a vertically slidable member 115 having an inclined projecting rib 118 which is contacted by rollers 116, 117 carried by the housing; movements of the member 115 are effected by an hydraulic cylinder 121. The shaft 109 is also adjustable by a hand wheel 122 to reduce the orbiting radius when changing grinding wheels. Normal feed movements are effected by the slide 115 controlled by the cylinder 121, each increment being determined by a metering cylinder 144, Fig. 18, having a floating piston 145 and an adjustable stop 146 for controlling the stroke. A switch-operating cam 138, Fig. 4, rotatable with the shaft 71, and therefore with the orbiting movement of the grinding wheel, actuates switches LS1 and LS2 to control the operation of a feed relay which, through a solenoid 139, shifts a valve 141, Fig. 18, to regulate the flow to and from the cylinder 144 as the grinding wheel axis crosses the line 28, Fig. 4. Switches LS3, LS4 similarly actuate a valve 142 which controls the movements of the slide 115 in its limiting positions; thus the valve 141 controls feed increments and the valve 142 the re-setting of the piston-rod 119, thereby retracting the bar 92. A mechanical stop is provided to limit the increase in orbital radius so that several orbits at maximum radius may be made for finishing the grooves. The dressing means 55 is co-ordinated with other operations by limit switches (not shown) for reversing the oscillatory movements of the dressing head 57 at the end of each stroke and for simultaneous compensating movement of the ratchet 101 by a cylinder 106, Fig. 12, to increase the orbital radius, the wheel axis during the dressing operation being on the line 21, Fig. 5; a counter may be provided whereby the dressing head 57 is retracted by the cylinder 58 after a predetermined number of oscillations. A safety switch may be provided for controlling the advance of the slide 44 towards the workpiece after the dressing assembly is fully retracted. | ||||||
| 79 | Apparatus for cutting gear tooth surfaces | US34029453 | 1953-03-04 | US2882798A | 1959-04-21 | BREGI BENJAMIN F; POHLMEYER FERDINAND J |
| 80 | Machines for grinding gear tooth and like profiles | US36245153 | 1953-06-18 | US2836014A | 1958-05-27 | ETHELRED CALDERWOOD THOMAS |
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