专利检索_....无级变速专利检索_....无级变速专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	Machine tool transmission and control	US12677937	1937-02-20	US2203743A	1940-06-11	PARSONS FRED A

122	Lathe	US20797D		USRE20797E	1938-07-12

123	Lathe	US6724136	1936-03-05	US2081641A	1937-05-25	POTTER FREDERICK T

124	Variable speed mechanism for drills	US34925529	1929-03-22	US1842194A	1932-01-19	PETERSON VICTOR H

125	Woodworking lathe control system	US15583216	2017-05-01	US10661469B2	2020-05-26	Wuzheng Duan; Libin Sun; Liting Zhao; Min Zhang
Lathe control systems and methods are described including stopping a motor prior to reversing direction as well as methods and systems that implement voltage and/or current protection thresholds.
126	LATHE CONTROL SYSTEM	US16773795	2020-01-27	US20200156281A1	2020-05-21	Wuzheng Duan; Libin Sun; Liting Zhao; Min Zhang
Lathe control systems and methods are described including stopping a motor prior to reversing direction as well as methods and systems that implement voltage and/or current protection thresholds.
127	Feed axis device of a machine tool	US15021627	2013-09-13	US10252388B2	2019-04-09	Ikuma Takahashi
The feed axis device of a machine tool is equipped with first and second planetary gear speed reducers, each of which is obtained from an inner element, outer element, and intermediate elements that are disposed between the two, the elements being disposed so as to be mutually rotatable and combined in series so that one of the three elements is a fixed section, one of the two remaining elements is the input section and the other is the output section. The element that is the input section of the first speed reducer and the element that is the input section of the second speed reducer are connected to a single drive source. The element that is the output section of the first speed reducer and the element that is the output section of the second speed reducer are connected. The feed axis device is provided with an actuator.
128	DC-motor	US15563328	2016-03-31	US10052730B2	2018-08-21	Peng Cheng; Bengt Oelmann; Stefan Haller
A variable-speed direct current motor comprising a stator (22), a rotor (23) arranged within the stator, and a motor drive device (40) arranged partly at the stator and partly at the rotor, wherein the stator comprises a yoke (25) defining a cylindrical cavity (31), and a plurality of permanent magnets (24) arranged at the yoke, wherein the rotor comprises a cylindrical core (26) and a conductor structure (47) arranged at the core, wherein the motor drive device comprises an alternating current transformer (41) having a primary winding (42) arranged at the stator and a secondary winding (43) arranged at the rotor, a rectifier device (44) arranged at the rotor and connected with the secondary winding, a direct current supply device (45) arranged at the rotor (23) and connected with the rectifier device (44), and with the conductor structure (47), and an operation control device (48) comprising a first unit (49) arranged at the rotor (23) and a second unit (50) arranged externally of the rotor and wirelessly communicating with the first unit.
129	WOODWORKING LATHE CONTROL SYSTEM	US15583216	2017-05-01	US20170341260A1	2017-11-30	Wuzheng DUAN; Libin SUN; Liting ZHAO; Min ZHANG
Lathe control systems and methods are described including stopping a motor prior to reversing direction as well as methods and systems that implement voltage and/or current protection thresholds.
130	FEED AXIS DEVICE OF A MACHINE TOOL	US15021627	2013-09-13	US20160229015A1	2016-08-11	Ikuma TAKAHASHI
The feed rod device of a machine tool is equipped with first and second planetary gear speed reducers (60, 80), each of which is obtained from an inner element (62, 82), outer element (64, 84), and intermediate elements (66, 68, 86, 88, 90) that are disposed between the two, the elements being disposed so as to be mutually rotatable and combined in series so that one of the three elements is a fixed section, one of the two remaining elements is the input section and the other is the output section. The element that is the input section of the first speed reducer (60) and the element that is the input section of the second speed reducer (80) are connected to a single drive source (Ma). The element that is the output section of the first speed reducer (60) and the element that is the output section of the second speed reducer (80) are connected to form a single output section. The feed rod device is provided with an actuator (M), which variably applies a rotational torque on the fixed section of the first speed reducer (60) and/or the fixed section of the second speed reducer (80).
131	Variable-speed, multiple-drive power tool	US490207	1995-06-14	US5954144A	1999-09-21	Bruce A. Thames
A variable-speed, multiple-drive, power tool (10) is driven by first motor (18) having a first longitudinal axis (32) and second motor (20) having a second longitudinal axis (100). Second motor (20) drives ring gear (52) of first planetary gear set (48) while first motor (18) drives pinion (36). First end (40) of pinion (36) serves as sun gear (46) for first planetary gear set (48). First planetary gear set (48) drives intermediate spindle (76). Intermediate spindle (76) in turn drives second planetary gear set (82). Second planetary gear set (82) drives output spindle (22) through gear element (90).
132	Drilling machine	US558648	1990-07-27	US5061124A	1991-10-29	Chao-Yang Chen
A top housing supported by a vertical post in a drilling machine is provided with a belt transmission mechanism incorporating a speed adjusting mechanism which can be operated easily and manually. The adjusting mechanism includes a knob connected to an adjusting rod which in turn is connected to a movable cone-shaped disk. The adjusting rod has a helical thread engaging with a projection of a fixed annular seat through which the adjusting rod passes. The adjusting rod is moved axially when rotated and moves the movable cone-shaped disk with respect to a fixed cone-shaped disk. A locking nut is threadedly sleeved around the annular seat to prevent the adjusting rod from rotation when the nut is tightened. The top housing is mounted movably on the vertical post and normally moved upward by a compression spring. A rack-and-pinion mechanism is associated with the top housing and the vertical post so that the top housing can be moved downward by operating a handle which is connected to the rack-and-pinion mechanism.
133	Drill press with coolant means	US3702740D	1970-04-13	US3702740A	1972-11-14	PETTIGREW DAVID D
AN OIL-HOLE DRILL PRESS HAVING AN INFINITELY VARIABLE SPEED SPINDLE DRIVE SYSTEM AND A HYDRAULICALLY OPERATED, INFINITELY VARIABLE RATE FEED SYSTEM FOR ROTATING A DRIL AND FEEDING IT INTO A WORKPIECE AT A SELECTED HIGH SPEED AND FEED RATE SUBSTANTIALLY EQUAL TO THE MAXIMUM CUTTING SPEED OF THE METAL OF THE WORKPIECE FOR ACCEPTABLE TOOL LIFE. THE SPINDLE STRUCTURE INCLUDES DRIVING AND DRIVEN SPINDLES ROTATABLE TOGETHER, WITH THE DRIVEN ONE BEING AXIALLY SLIDABLE WITH THE DRIVING SPINDLE, AND BOTH SPINDLES INCLUDE PASSAGESWAYS THROUGH WHICH AN OIL COOLANT IS SUPPLIED TO THE TIP OF THE DRILL BIT THROUGH AN AXIALTHROUGH PASSAGE. AN HYDRAULIC SYSTEM PUMPS HIGH PRESSURE COOLANT OIL TO THE DRIVING SPINDLE AND RECIRCULATES SPENT COOLANT FROM A REMOVABLE CHIP PAN ASSEMBLY AT THE BASE OF THE MACHINE TO A MAIN COOLANT SUPPLY TANK. THE DRILL PRESS INCLUDES A STEEL FABRICATED C TYPE COLUMN STRUCTURE OF EXTREME RIGIDITY, THE UPPER SPINDLE SUPPORT ARM OF WHICH IS CAPABLE OF WITHSTANDING HIGH THRUST AND TORQUE LOADS IMPARTED TO THE DRILL BIT AND SPINDLE DUR ING OPERATION OF THE DRILL BIT AT THE MAXIMUM PREDETERMINABLE FEED PENETRATION RATES AND ROTATIONAL SPEEDS FOR THE METAL OF THE WORKPIECE.
134	Grinding machine headstock	US46152154	1954-10-08	US2783595A	1957-03-05	HILL OIVA E

135	Displacement indicator	US44619554	1954-07-28	US2743699A	1956-05-01	HOLLIS JOHN C

136	Speed control apparatus	US10487349	1949-07-15	US2594663A	1952-04-29	MARTIN LINDELL

137	Drilling machine and spindle driving mechanism	US36071340	1940-10-11	US2309589A	1943-01-26	HIRVONEN ERIC J

138	Device for control of the cutting speed of machine tools	US22754438	1938-08-30	US2209037A	1940-07-23	PAUL RIEGGER

139		AT149484	1984-05-07	AT400417B	1995-12-27	TAGUCHI MASAYUKI
A method of controlling a cutting machine to cut workpieces according to the machinability of the workpieces includes the steps of providing a plurality of predetermined constant voltage outputs, each constant voltage output corresponding to a predetermined cutting speed for the cutting machine, selecting one of a plurality of constant voltage outputs in response to a desired workpiece material to be cut by the machine, and driving the cutting tool at a predetermined cutting speed corresponding to the desired material to be cut in response to the selected constant voltage output.
140		AT149484	1984-05-07	ATA149484A	1995-05-15	TAGUCHI MASAYUKI
A method of controlling a cutting machine to cut workpieces according to the machinability of the workpieces includes the steps of providing a plurality of predetermined constant voltage outputs, each constant voltage output corresponding to a predetermined cutting speed for the cutting machine, selecting one of a plurality of constant voltage outputs in response to a desired workpiece material to be cut by the machine, and driving the cutting tool at a predetermined cutting speed corresponding to the desired material to be cut in response to the selected constant voltage output.

2 3 4 5 6 7 8 9 10 11

IPRDB

热门服务

关于我们

友情链接

联系方式