CN214384889U

CN214384889U - Ultrasonic motor driving device

Info

Publication number: CN214384889U
Application number: CN202022096218.5U
Authority: CN
Inventors: 吴献军; 邹永标; 邱南阳
Original assignee: Pingjiang Feitianying Electronic Technology Co ltd
Current assignee: Pingjiang Feitianying Electronic Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-10-12
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses an ultrasonic motor drive arrangement, the on-line screen storage device comprises a base, the base is the square structure of plastics material, screw hole has been seted up in base top four corners, threaded hole inside threaded connection has set screw, base top joint has the casing, the casing is cavity stainless steel, and the casing top has seted up the round hole, the joint groove has been seted up to drive shaft one end, the bearing is located to joint inslot portion, the bearing is inside to cup joint with the drive shaft periphery and is connected, the bearing outside is connected with the round hole joint that the casing top was seted up, base one side colludes to be connected with the winding displacement, winding displacement and the inside electric connection of base, winding displacement other end electric connection has the joint. This kind of ultrasonic motor drive arrangement, through stator and the rotor that is equipped with to and through ultrasonic wave's vibrations driving motor pivot, alleviate motor weight, reduce the motor volume, convenience and practicality very.

Description

Ultrasonic motor driving device

Technical Field

The utility model relates to an ultrasonic motor drive device produces and makes technical field, specifically is an ultrasonic motor drive device.

Background

The ultrasonic motor is a motor which obtains driving power by applying an elastic vibration mode of ultrasonic waves and then drives a rotor by using friction force. The frequency of sound perceived by human ears is in the range of about 50Hz to 20kHz, so that the ultrasonic wave is sound wave with frequency above 20kHz or the piezoelectric ceramic under the condition of mechanical vibration and applied AC voltage as a driving source generates the alternating expansion and contraction phenomenon of the ultrasonic wave, although the expansion and contraction magnitude is only about several micrometers, the expansion and contraction can be tens of thousands of times per second, and the movement can be up to several centimeters per second. The ultrasonic motor research is that the design obtains the elliptic motion of bucking elastic wave with different modes, and the bucking elastic wave of using the ultrasonic motor can be divided into two types: a standing wave type ultrasonic motor of which a rotor is driven by the end of an oscillator; a traveling wave type ultrasonic motor of the type in which a rotor is driven by a traveling wave traveling in a specific direction. Although the ultrasonic motor of the standing wave type has a high electromechanical conversion efficiency, the ultrasonic motor of the traveling wave type can change its direction instantly, and has a large flexibility in design, such as volume and weight, and is mainly used in a traveling wave type ultrasonic motor in general applications. The traditional ultrasonic motor is large in size, heavy in weight, complex in structure and small in torque, so that the ultrasonic motor driving device is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an ultrasonic motor drive arrangement, the on-line screen storage device comprises a base, the base is the square structure of plastics material, screw hole has been seted up in base top four corners, threaded hole inside threaded connection has set screw, base top joint has the casing, the casing is cavity stainless steel, and the casing top has seted up the shaft hole, the inside joint in shaft hole is connected with the bearing, the inside drive shaft that cup joints of bearing, the drive shaft is made by stainless steel, the joint groove has been seted up to drive shaft top one end, base one side colludes and is connected with the winding displacement, winding displacement and the inside electric connection of base, winding displacement other end electric connection has the buckle to connect, the buckle joint is made by the plastics material, buckle joint both sides are equipped with the buckle.

As an optimal technical scheme of the utility model, base top fixedly connected with stator, the stator is made by the magnet material.

As a preferred technical scheme of the utility model, the inside rotation of stator is connected with the rotor, the rotor is inside to be connected with drive shaft bottom periphery joint.

As a preferred technical scheme of the utility model, the stator periphery cup joints and is connected with the coil, the coil is made by the copper wire winding, coil bottom and base top fixed connection, coil and winding displacement electric connection.

As an optimal technical scheme of the utility model, the inside bonding of stator is fixed with intelligent piezoelectric ceramic membrane, intelligent piezoelectric ceramic membrane is made by the dielectric crystal that has piezoelectric effect.

As an optimal technical scheme of the utility model, the coil periphery bonds and is fixed with insulating tape, insulating tape is made by the rubber material.

As a preferred technical scheme of the utility model, chassis bottom periphery bolted connection has a plurality of countersunk screw, countersunk screw bottom and base top bolted connection.

The utility model has the advantages that: the ultrasonic motor driving device can provide support for the coil base through the arranged stator base, can excite a stable particle elliptic motion track on the surface of the stator base through the arranged stator base, can convert the micro motion of the particle horizontal direction on the surface of the stator base into the macro motion or the translation motion of a rotor, can drive the driving shaft base to rotate through the arranged rotor base, can enhance induction current through the arranged coil base, thereby enabling the moment of the rotor base to be larger, can realize the vibration of ultrasonic frequency through the arranged intelligent piezoelectric ceramic membrane base, enables the rotor base to rotate, can organize the magnetic field generated by the external magnetic field to the coil base to interfere through the arranged insulation adhesive tape base, and can protect the inside of the coil base, the machine shell base can be fixed through the countersunk head screw base seat, and the machine shell base is convenient to disassemble and fix.

Drawings

Fig. 1 is a schematic view of the overall structure of an ultrasonic motor driving apparatus according to the present invention;

fig. 2 is a schematic view of a stator structure of an ultrasonic motor driving apparatus according to the present invention;

fig. 3 is a schematic diagram of a coil structure of the ultrasonic motor driving device of the present invention.

In the figure: 1. a base; 2. a set screw; 3. a housing; 4. a bearing; 5. a drive shaft; 6. A clamping groove; 7. arranging wires; 8. a snap joint; 9. a stator; 10. a rotor; 11. a coil; 12. An intelligent piezoelectric ceramic membrane; 13. an insulating tape; 14. countersunk head screw.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3, the utility model relates to an ultrasonic motor drive device, including base 1, base 1 is the cube structure of plastics material, threaded hole has been seted up at 1 top four corners of base, threaded hole inside threaded connection has set

screw

2, 1 top joint of base has casing 3, casing 3 is cavity stainless steel, and the shaft hole has been seted up at 3 tops of casing, the inside joint in shaft hole is connected with bearing 4, the inside cup joint of bearing 4 is connected with drive shaft 5, drive shaft 5 is made by stainless steel, joint groove 6 has been seted up to 5 top one ends of drive shaft, 1 one side of base is colluded and is connected with winding displacement 7, winding displacement 7 and the inside electric connection of base, 7 other end electric connection of winding displacement have buckle to connect 8, buckle connects 8 and is made by the plastics material, buckle connects 8 both sides and is equipped with the buckle.

The stator 9 is fixedly connected to the top of the base 1, the stator 9 is made of a magnet material, the coil 11 can be supported by the arranged stator 9, a stable mass point elliptic motion track can be excited on the surface of the stator 9 by the arranged stator 9, and the horizontal micro motion of the mass point on the surface of the stator 9 is converted into the macro motion or the translation of the rotor 10.

Wherein, the inside rotation of stator 9 is connected with rotor 10, and rotor 10 is inside to be connected with drive shaft 5 bottom periphery joint, can drive shaft 5 through the rotor 10 that is equipped with and rotate.

Wherein, stator 9 periphery cup joints and is connected with coil 11, and coil 11 is made by the copper wire winding, and coil 11 bottom and base 1 top fixed connection, coil 11 and winding displacement 7 electric connection can make induced-current reinforcing through the coil 11 that is equipped with to the moment that makes rotor 10 is bigger.

Wherein, the stator 9 is fixed with an intelligent piezoelectric ceramic film 12 in a bonding way, the intelligent piezoelectric ceramic film 12 is made of dielectric crystal with piezoelectric effect, and the intelligent piezoelectric ceramic film 12 is arranged to realize the vibration of ultrasonic frequency, so that the rotor 10 rotates.

Wherein, coil 11 periphery bonding is fixed with insulating tape 13, and insulating tape 13 is made by the rubber material, can organize external magnetic field through insulating tape 13 that is equipped with and interfere the magnetic field that coil 11 produced to and protect 11 insides of coil.

Wherein, the peripheral bolted connection in casing 3 bottom has a plurality of countersunk screw 14, and countersunk screw 14 bottom and base 1 top bolted connection can fixed casing 3 through countersunk screw 14 that is equipped with, make things convenient for dismantling and fixing of casing 3.

The working principle is as follows: firstly, a buckle joint 8 is connected with a power supply, the power supply is transmitted to a coil 11 through a flat cable 7, the coil 11 converts electric energy into a magnetic field, induced current can be enhanced through the arranged coil 11, so that the moment of a rotor 10 is larger, the magnetic field penetrates through the stator 9, the coil 11 can be supported through the arranged stator 9, a stable mass point elliptic motion track can be excited on the surface of the stator 9 through the arranged stator 9, the micro motion of the mass point on the surface of the stator 9 in the horizontal direction is converted into the macro motion or the translation motion of the rotor 10, so that the magnetic field is converted into vibration through an intelligent piezoelectric ceramic membrane 12, the rotor 10 rotates, the rotor 10 drives a driving shaft 5 to rotate, the external magnetic field can be organized through an insulating adhesive tape 13 to interfere with the magnetic field generated by the coil 11, the interior of the coil 11 is protected, and at the moment, a clamping groove 6 can be directly clamped with equipment to be driven, the machine shell 3 can be fixed through the countersunk head screw 14, so that the machine shell 3 is convenient to disassemble and fix.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasonic motor driving device comprises a base (1) and is characterized in that the base (1) is of a cube structure made of plastic, threaded holes are formed in four corners of the top of the base (1), fixing screws (2) are connected to threads inside the threaded holes, a casing (3) is clamped on the top of the base (1), the casing (3) is made of hollow stainless steel, a shaft hole is formed in the top of the casing (3), a bearing (4) is connected to the inside of the shaft hole in a clamped mode, a driving shaft (5) is connected to the inside of the bearing (4) in a sleeved mode, the driving shaft (5) is made of stainless steel, a clamping groove (6) is formed in one end of the top of the driving shaft (5), a flat cable (7) is connected to one side of the base (1) in a serial mode, the flat cable (7) is electrically connected to the inside of the base (1), and a buckle connector (8) is electrically connected to the other end of the flat cable (7), the buckle connector (8) is made of plastic materials, and buckles are arranged on two sides of the buckle connector (8).

2. An ultrasonic motor driving device as claimed in claim 1, wherein a stator (9) is fixedly connected to the top of the base (1), and the stator (9) is made of a magnet material.

3. An ultrasonic motor driving device as claimed in claim 2, wherein a rotor (10) is rotatably connected inside the stator (9), and the inside of the rotor (10) is connected with the periphery of the bottom of the driving shaft (5) in a clamping manner.

4. An ultrasonic motor driving device according to claim 2, wherein the stator (9) is connected with a coil (11) at the periphery in a sleeved manner, the coil (11) is made of copper wire by winding, the bottom of the coil (11) is fixedly connected with the top of the base (1), and the coil (11) is electrically connected with the flat cable (7).

5. An ultrasonic motor driving device as claimed in claim 2, wherein an intelligent piezoelectric ceramic film (12) is bonded and fixed inside said stator (9), and said intelligent piezoelectric ceramic film (12) is made of dielectric crystal having piezoelectric effect.

6. An ultrasonic motor driving device according to claim 4, wherein an insulating tape (13) is bonded and fixed to the outer periphery of said coil (11), and said insulating tape (13) is made of a rubber material.

7. An ultrasonic motor driving device as claimed in claim 1, wherein a plurality of countersunk head screws (14) are bolted to the periphery of the bottom of the housing (3), and the bottom of the countersunk head screws (14) is bolted to the top of the base (1).