K shaped linear ultrasound motor based on continuous amplitude transforming rod principle

A linear ultrasonic motor, horn technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of small output force, low efficiency, low speed, etc. problem, to achieve the effect of increasing the speed
CN101404467AInactive Publication Date: 2009-04-08NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
1 Cites 62 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2009-04-08
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a K-shaped linear ultrasonic motor based on the theory of a continuous amplitude transformer, belonging to the field of ultrasonic motor. The motor comprises a stator and a rotor; wherein, the rotor is a linear guide way; the stator consists of two Langevin oscillators, center lines of which are crossed; each Langevin oscillator consists of a front end (41), a rear end (61), a piezoelectric ceramic chip (31) and corresponding electrode plates (51); the head parts of the two Langevin oscillators are connected into a whole to form a driving leg (42); the linear guide way and the two Langevin oscillators are arranged in the same plane and form a K-shaped structure. The invention is characterized in that the Langevin oscillators are in the rod structure; the section of the rod is a continuous section that is gradually reduced from the rear end (61) to the front end (41). The linear ultrasonic motor of the invention has the advantages of simple structure, high output power, fast operating speed and high output efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The K-shaped linear ultrasonic motor based on the principle of a continuous horn of the present invention belongs to the field of ultrasonic motors. Background technique

[0002] The ultrasonic motor is a new type of power output device that utilizes the inverse piezoelectric effect of piezoelectric ceramics and structural ultrasonic vibration. Linear ultrasonic motors belong to a category of ultrasonic motors. According to the structure of the stator of the linear ultrasonic motor is a plate and a rod (or a combined structure of rods), the linear ultrasonic motor is divided into a plate structure and a rod structure. Although the plate structure linear ultrasonic motor has simple structure and flexible design, it has low efficiency, low speed and small output force. For industrial robots, aerospace and other application fields, linear ultrasonic motors with large output force and high efficiency are required. The Chinese Utility Model Patent No. 20...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More