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Ultrasonic linear motor with hydraulic displacement amplification mechanism and operating method thereof

A displacement amplifying mechanism, linear motor technology, applied in generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problems of short life, small thrust, low efficiency, etc. Achieve the effect of low work loss, increase speed and reduce manufacturing cost

Inactive Publication Date: 2011-08-17
刘勤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010]However, due to the structure and force transmission mode of the existing ultrasonic linear motor, there are defects such as small thrust, low efficiency, large loss, short life, and slow speed. needs improvement

Method used

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  • Ultrasonic linear motor with hydraulic displacement amplification mechanism and operating method thereof
  • Ultrasonic linear motor with hydraulic displacement amplification mechanism and operating method thereof
  • Ultrasonic linear motor with hydraulic displacement amplification mechanism and operating method thereof

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Experimental program
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Effect test

Embodiment 1

[0048] like figure 1 and 2 As shown, the present invention is mainly composed of a motor stator with a central hole and a motor mover 1 penetrating through the central hole. The motor stator is mainly composed of a stator housing and a radial concave The stator housing is mainly composed of the stator housing A33 and the stator housing B34 buckled together, and the radial groove and the axial groove are arranged radially and vertically along the central hole respectively. Axial setting; one end of the radial groove communicates with the central hole, and the left or right side of the radial groove is provided with a spring groove communicating with it; the axial groove is located on the right side of the radial groove Or the left side, and communicate with the radial groove; the radial piezoelectric strip 2 is arranged in the radial groove, the axial piezoelectric strip 3 is arranged in the axial groove, and the spring is arranged in the spring groove 4.

[0049] In the pre...

Embodiment 2

[0064] Due to the existing piezoelectric materials or components used to manufacture piezoelectric strips, the displacement (stretch) of each power-on and power-off cycle can only be a few thousandths of the device size at most, but can be a few percent The device is still under development, and the technology is very difficult; and the cost of the piezoelectric strip is high. If the displacement (stretching) of each power-on and power-off cycle is to be increased, the usage of the piezoelectric strip will inevitably increase, which will increase the manufacturing cost of the motor. In order to overcome the above shortcomings, increase the displacement stroke of each action cycle, thereby increasing the speed of the motor, making up for the speed of this type of motor and reducing the manufacturing cost, such as Figure 4 and 5 As shown, the present invention is provided with a radial hydraulic displacement amplification mechanism between the radial piezoelectric strip 2 and t...

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Abstract

The invention discloses an ultrasonic linear motor with a hydraulic displacement amplification mechanism, which comprises a motor stator with a centre hole and a motor rotor penetrated in the centre hole; the motor stator mainly consists of a stator shell, and a radial groove and an axial groove installed on the stator shell, the radial groove and the axial groove are respectively radially and axially arranged along the centre hole; one end of the radial groove is communicated with the centre hole, and the left side or the right side of the radial groove is provided with a spring groove communicated therewith; the axial groove is positioned at the right side or the left side of the radial groove and communicated with the radial groove; the radial groove is provided with a radial piezoelectric stripe, the axial groove is provided with an axial piezoelectric stripe therein; and a spring is installed in the spring groove. The invention further discloses an operating method of the ultrasonic linear motor with hydraulic displacement amplification mechanism. The ultrasonic linear motor with hydraulic displacement amplification mechanism has the advantages of large thrust, high efficiency, small loss, fast speed and long service life.

Description

technical field [0001] The invention relates to an ultrasonic linear motor with a hydraulic displacement amplification mechanism, which is suitable for positioning and driving in various occasions such as precision measurement, metering, office automation equipment, industrial appliances, household appliances, robots, automobiles, aerospace equipment, etc. method. Background technique [0002] Ultrasonic linear motor is a motor that uses piezoelectric material crystals to deform under the action of an external electric field as a driving force to generate linear motion. This ultrasonic linear motor has the following characteristics: [0003] 1. It does not need to be like other types of linear motors. It converts electrical energy into mechanical energy for linear motion based on the principle that the current-carrying conductor receives electromotive force in a magnetic field. [0004] 2. There are no coils and iron cores in the stator and mover parts, and the structure i...

Claims

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Application Information

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IPC IPC(8): H02N2/02H02N2/04
Inventor 刘勤
Owner 刘勤
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