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Wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator

A linear ultrasonic motor, sandwich-type technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of complex structure, high processing and assembly precision requirements, etc. , to achieve the effects of improving mechanical output capability, simplifying the structure of the vibrator, and flexibly designing

Inactive Publication Date: 2012-05-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing rectangular quadruped linear ultrasonic motor vibrator has a complex structure and requires extremely high processing and assembly precision, a sandwich type rectangular quadruped linear ultrasonic motor vibrator with wedge-shaped preload is provided

Method used

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  • Wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator
  • Wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator
  • Wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator

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specific Embodiment approach 1

[0026] Specific implementation mode one: the following combination Figure 1 to Figure 4 Describe this embodiment, the sandwich-type quadruped linear ultrasonic motor vibrator adopting wedge-shaped pretension described in this embodiment, which includes a rectangular metal base 1, sixteen pairs of longitudinal vibration piezoelectric ceramic sheets 2, sixteen wedge-shaped blocks 3, Eight preloading blocks 4, preloading screws 5, preloading nuts 6, sixteen insulating gaskets 7 and sixteen electrode sheets 8,

[0027] The rectangular metal matrix 1 is composed of four composite beams of the same shape, divided into two horizontal composite beams 1-4 and two vertical composite beams 1-3,

[0028] Each composite beam is composed of a column beam 1-1 and two horns 1-2, the beam 1-1 is a quadrangular prism with a rectangular cross section, and the horn 1-2 is a rectangular cross section And gradually thinner quadrangular prism, two horns 1-2 are respectively arranged at the two end...

specific Embodiment approach 2

[0036] Specific implementation mode two: the following combination figure 1 , image 3 with Figure 4 Describe this embodiment, this embodiment is a further description of Embodiment 1, this embodiment also includes four friction plates 9,

[0037] The small end surface of the horn 1-2 of each horizontal composite beam 1-4 is provided with a long strip-shaped slot along its thickness direction, and the friction plate 9 is fixed on the horn 1-2 through the strip-shaped slot. 2 on the small end face.

specific Embodiment approach 3

[0038] Specific implementation mode three: the following combination image 3 with Figure 4 This embodiment is described. This embodiment is a further description of Embodiment 2. The friction plate 9 in this embodiment is covered on the small end surface of the horn 1-2 of the horizontal composite beam 1-4, and the friction plate The shape of the outer end face of 9 is identical with the shape of the place small end face.

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Abstract

A wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator, belonging to the technical field of piezoelectric ultrasonic motor, which solves the problem in the current rectangular four-pin linear ultrasonic motor vibrator that has complex structure and high requirement on the processing and assembling precision, wherein two horizontal combined beams and two longitudinal combined beams form a rectangular frame; the central positions of the inside face and the outside face of the column beam of each combined beam are respectively opened with a rectangular chute; the central position of each rectangular chute is provided with a pre-pressing block; a pair of longitudinal vibration piezoelectric ceramic chips is installed between two side faces of the pre-pressing block and the side wall of the rectangular chute; a wedge-shaped block is formed between each pair of longitudinal vibration piezoelectric ceramic chips and the pre-pressing block; the contact surface between the wedge-shaped block and the bottom part of the rectangular chute is a big end face of the wedge-shaped block; two pre-pressing blocks on the same combined beam are cooperatively connected with a pre-tightening nut via a pre-tightening screw, and then the longitudinal vibration piezoelectric ceramic chips are pre-tightened. The invention is suitable for manufacturing the ultrasonic motor vibrator.

Description

technical field [0001] The invention relates to a sandwich type quadruped linear ultrasonic motor vibrator adopting wedge-shaped pre-tightening, which belongs to the technical field of piezoelectric ultrasonic motors. Background technique [0002] Piezoelectric ultrasonic motor is a kind of piezoelectric ultrasonic motor that uses the inverse piezoelectric effect of piezoelectric ceramics to excite vibration in the ultrasonic frequency range in the elastic body, and forms a particle motion with a specific trajectory at a specific point or area on the surface of the elastic body, and then passes through the stator, The friction coupling between the rotors converts the microscopic motion of the particle into the macroscopic motion of the rotor. It has the advantages of low speed and high torque, no need for speed change mechanism, no electromagnetic interference, fast response speed and self-locking when power is off. Electric drives have a very wide range of applications. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/04
Inventor 刘英想刘军考陈维山石胜君
Owner HARBIN INST OF TECH
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