Induced hollow spiral driving apparatus

Abstract

An induced hollow screw driving apparatus comprises a shell ( 6 ) shaped like a round pipe and having a central through hole in an axial direction; a motor rotor ( 1 ) is disposed in the through hole of the shell ( 6 ) through two bearings ( 4 ) and has a central through hole in an axial direction; screw rings ( 2.1 and 2.2 ) used for driving are disposed on an inner wall of the through hole of the motor rotor ( 1 ); a drive block ( 5 ) is inserted in the sealed shell ( 6 ) to induce an outer wall ( 3 ) of the rotor ( 1 ), so as to drive the rotor ( 1 ) to rotate. The screw ring driving manner of the driving apparatus has small friction and noise, and the overall driving efficiency thereof exceeds that of existing driving devices such as a propeller; the driving apparatus further has advantages such as being leakage-free, coupling-free, spark-free, cavitation-free, capable of self-speed regulation, capable of turning, magnetizable and extendable, capable of self-cleaning, maintenance-free, and having a long service life.

What is claimed is: 
     
         1 . An induced hollow spiral driving apparatus, at least comprising: a shell ( 6 ) shaped like a round pipe, having a central circular hollow through hole in an axial direction and being sealed around the through hole, wherein a motor rotor ( 1 ) has a central circular hollow through hole in an axial direction, spiral rings ( 2 . 1 ,  2 . 2 ) used for driving are disposed on an inner wall of the through hole of the rotor ( 1 ), a drive block ( 5 ) is inserted in the sealed shell ( 6 ) to induce an outer wall ( 3 ) of the rotor so as to drive the rotor ( 1 ) to rotate, and the motor rotor ( 1 ) is fixed in the central circular hollow through hole of the shell ( 6 ) by two bearings ( 4 ) at an inlet opening ( 7 ) and an outlet opening ( 8 ) of the shell ( 6 ). 
     
     
         2 . The induced hollow spiral driving apparatus of  claim 1 , wherein the spiral rings ( 2 . 1 ,  2 . 2 ) formed in the apparatus at least comprises: (1) a length (L) thereof is greater than an axial length of the shell; (2) a spacing (D) therebetween is smaller than 50% of a length of the rotor (L); (3) a thickness of a root (T) is smaller than 50% of the insertion length (L); (4) the number of the rings is at least one; (5) a sum of fan angles of the spiral rings is at least greater than 2π; and (6) an angle (G) included between the pushing surface of the spiral rings and a cross section of the motor rotor is smaller than 90°. 
     
     
         3 . The induced hollow spiral driving apparatus of  claim 1 , wherein the outer wall ( 3 ) of the rotor at least comprises a fixing device having a magnetic permanent magnet material and having at least one pair of N pole and S pole distributed in a radial direction, or comprises a material that enables an induction motor to rotate automatically after an induced current is generated. 
     
     
         4 . The induced hollow spiral driving apparatus of  claim 1 , wherein the drive block ( 5 ) thereof at least comprises an electromagnetic coil winding and an electronic and electrical circuit around the central through hole, or an output end device of a mechanical shaft around the central through hole, and the drive block ( 5 ) comprises a conducting magnetic material for attraction with a passive object. 
     
     
         5 . The induced hollow spiral driving apparatus of  claim 1 , wherein the shell ( 6 ) at least comprises: (1) the shell ( 6 ) is made of a non-conducting magnetic material that is the material other than iron or other conducting magnetic material through integrally casting or formed by using fasteners to assemble separate components thereof and sealing the components into the shell; (2) sensors ( 9 ) for sensing the temperature, the pressure and the rotor position are disposed at a front section and a back section inside the shell; (3) a comprehensive interface ( 10 ) for receiving electric cables, external signals and energy is disposed outside the central through hole of the shell, and (4) a thickness of an inner wall at the position of the central through hole of the shell is smaller than an effective radius of magnetic lines of force of the drive block ( 5 ) and the rotor ( 1 ). 
     
     
         6 . The induced hollow spiral driving apparatus of  claim 2 , wherein a connection structure between the spiral rings ( 2 . 1 ,  2 . 2 ) formed in the apparatus and the inner wall of the rotor ( 1 ) is formed at least through (1) integrally casting, (2) inserted riveting or (3) welding. 
     
     
         7 . The induced hollow spiral driving apparatus of  claim 4 , wherein the electronic and electrical circuit of the drive block ( 5 ) at least (1) is capable of receiving various instructions and making logic operations automatically; (2) is capable of generating magnetic forces of difference polarities through the operations and processing to operate the rotor, stop the rotor, rotate the rotor in a forward direction or in a reverse direction or regulate the rotation speed of the rotor; and (3) is provided with an external instruction input interface; and (4) has a plurality of internal sensors. 
     
     
         8 . The induced hollow spiral driving apparatus of  claim 1 , wherein a clearance between the outer wall of the central through hole of the shell ( 6 ) and the outer wall ( 3 ) of the rotor is smaller than 50% of a diameter (Φ) of the rotor ( 1 ).