Traveling wave ultrasonic motor assembling device
A technology for ultrasonic motors and assembly devices, which is applied in the direction of generators/motors, electrical components, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., and can solve the problem that the pre-pressure cannot be measured
Inactive Publication Date: 2011-10-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
Since the preload is very sensitive to the thickness of the gasket, the change of the thickness of the gasket and the stiffness of the rotor directly affects the size of the preload, and the above method cannot measure the applied preload
At present, there is no mature technology for ultrasonic motor assembly and preloading in China.
Method used
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Embodiment Construction
[0012] Such as figure 1 Shown is the exploded structure of a traveling wave ultrasonic motor.
[0013] The structure of the present invention is as figure 2 As shown, it includes a positioning device, a pre-pressure loading device and a pressure sensor 15. The positioning device includes an overall outer frame 4, a positioning screw 5, a jacking screw 6, a cylindrical sleeve 7, and a connecting bolt 8. The pre-pressure loading device includes a connecting piece 9 , rectangular cover frame 12, loading screw 13, beam 16, wherein: beam 16 passes through rectangular cover frame 12 and one end thereof is fixed on the rectangular horizontal plate below the whole outer frame 4 side with connector 9, and loading screw 13 is from rectangular cover The lower end of the frame 12 is screwed in, the upper end of the rectangular sleeve frame 12 is fixedly connected with the cylindrical sleeve 7 with the connecting bolt 8, the jacking screw 6 is screwed on the upper part of the wall of the...
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The invention discloses a traveling wave ultrasonic motor assembling device, which belongs to the filed of ultrasonic motor assembly and pre-pressure loading thereof. The device structurally comprises a positioning device, a pre-pressure loading device and a pressure sensor, wherein the positioning device comprises an integral outer frame, a positioning screw, a tightly propping screw, a cylindrical sleeve barrel and a connecting bolt, the pre-pressure loading device comprises a connecting element, a rectangular sleeve frame, a loading screw and a beam, the beam passes through the rectangularsleeve frame, one end of the beam is fixed to a position under a transverse plate of one side of the integral outer frame through the connecting element, the pressure sensor is fixed under the transverse plate of the other side of the integral outer frame, the loading screw is screwed in the rectangular sleeve frame from the lower end of the rectangular sleeve frame, the upper end of the rectangular sleeve frame is fixedly connected with the cylindrical sleeve through the connecting bolt, the tightly propping screw is screwed on the wall of the cylindrical sleeve barrel, a case and a base of an ultrasonic motor are fixed on the upper surface of the integral outer frame, and a shaft of the ultrasonic motor is sheathed in the cylindrical sleeve barrel. The invention can measure the intensity of the exerted pre-pressure in the assembling process, can realize the control on the pre-pressure, and can ensure the normal operation of the motor.
Description
technical field [0001] The invention relates to a motor assembly device, in particular to a traveling wave ultrasonic motor assembly device, which belongs to the field of ultrasonic motor assembly and pre-pressure loading. Background technique [0002] Ultrasonic motor is an energy conversion device with a new principle and structure. It uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into vibration energy of the stator, and drives the rotor to rotate through the friction between the stator and rotor. It has a structure It has the advantages of compactness, small rotor inertia, fast corresponding braking, power-off self-locking, and direct drive of loads. It has broad application prospects in the fields of aerospace, micro-machines, robots, precision instruments, servo mechanisms, and medical equipment. . [0003] Ultrasonic motors transmit power by friction, and there is pre-pressure between the stator and rotor. The size of t...
Claims
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IPC IPC(8): H02N2/16
Inventor 姚志远耿冉冉沙金
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS