阅读说明：本技术 一体化超声电机自动平衡装置 (Integrated ultrasonic motor automatic balancing device ) 是由 潘鑫 吴海琦 王洋洋 江志农 高金吉 于 2019-10-30 设计创作，主要内容包括：本发明一体化超声电机自动平衡装置包括：端盖、外壳、隔板、第一超声电机、第一异形配重块、第二超声电机、第二异形配重块、支撑盘、电池、第一电路板和第二电路板,在外壳内由隔板将外壳内分成两个相同空间,在左侧空间内装有第一超声电机、第一异形配重块和端盖,第一超声电机固定在隔板左侧中央,第一异形配重块固定在第一电机轴上,伸出第一电机轴由端盖支撑；在右侧空间内装有第二超声电机、第二异形配重块和支撑盘,第二超声电机固定在隔板右侧中央,第二异形配重块固定在第二电机轴上,伸出第二电机轴由支撑盘支撑,在支撑盘外侧对称地固定有第一电路板、第二电路板和电池,第一电路板和第二电路板分别与第一超声电机和第二超声电机相连。(The integrated ultrasonic motor automatic balancing device of the invention comprises: the ultrasonic vibration generator comprises an end cover, a shell, a partition plate, a first ultrasonic motor, a first special-shaped balancing weight, a second ultrasonic motor, a second special-shaped balancing weight, a supporting plate, a battery, a first circuit board and a second circuit board, wherein the shell is divided into two identical spaces by the partition plate in the shell; the second ultrasonic motor, the second special-shaped balancing weight and the supporting plate are arranged in the right space, the second ultrasonic motor is fixed in the center of the right side of the partition plate, the second special-shaped balancing weight is fixed on a second motor shaft, the second motor shaft extends out and is supported by the supporting plate, a first circuit board, a second circuit board and a battery are symmetrically fixed on the outer side of the supporting plate, and the first circuit board and the second circuit board are respectively connected with the first ultrasonic motor and the second ultrasonic motor.)

1. An integrated ultrasonic motor automatic balancing device, comprising: end cover (1), shell (2), baffle (18), first supersound motor (3), first dysmorphism balancing weight (10), second supersound motor (4), second dysmorphism balancing weight (5), supporting disk (6), battery (8), first circuit board (7) and second circuit board (15), its characterized in that: the inner part of the shell (2) is divided into a left space and a right space by a partition plate (18) in the shell (2), a first ultrasonic motor (3), a first special-shaped balancing weight (10) and an end cover (1) are arranged in the left space, the first ultrasonic motor (3) is fixed in the center of the left side of the partition plate (18), a first motor shaft (13) extends outwards from the first ultrasonic motor (3), the first special-shaped balancing weight (10) is fixed on the first motor shaft (13) through a key (17), the end cover (1) is fixed at the left end of the shell (2), and the extending first motor shaft (13) is supported by the end cover (1); a second ultrasonic motor (4), a second special-shaped balancing weight (5) and a supporting plate (6) are arranged in the right space, the second ultrasonic motor (4) is fixed in the center of the right side of the partition plate (18), a second motor shaft (14) extends outwards from the second ultrasonic motor (4), the second special-shaped balancing weight (5) is fixed on the second motor shaft (14) through a key (17), the supporting plate (6) is fixed at the right end of the shell (2), the extended second motor shaft (14) is supported by the supporting plate (6), a first circuit board (7) and a second circuit board (15) are symmetrically fixed on the outer side of the supporting plate (6), the first circuit board (7) and the second circuit board (15) are respectively connected with binding posts of the first ultrasonic motor (3) and the second ultrasonic motor (4) through information wires, a battery (8) is fixed on the outer sides of the first circuit board (7) and the second circuit board (15), power is supplied to the first circuit board (7) and the second circuit board (15).

2. The integrated ultrasonic motor automatic balancing device of claim 1, wherein: the integrated ultrasonic motor automatic balancing device further comprises: and the shield (9), and the shield (9) is arranged on the outer sides of the first circuit board (7), the second circuit board (15) and the battery (8) and is fixed at the right end of the shell (2).

3. The integrated ultrasonic motor automatic balancing device of claim 2, wherein: the first special-shaped balancing weight (10) and the second special-shaped balancing weight (5) are semicircular wheels and are symmetrically arranged on two sides of the center line of the left space and the right space respectively.

4. The integrated ultrasonic motor automatic balancing device of claim 3, wherein: and a skirt edge (19) is arranged on the periphery of the semicircular wheel of the first special-shaped balancing weight (10) and the second special-shaped balancing weight (5).

5. The integrated ultrasonic motor automatic balancing device of claim 4, wherein: a bearing (16) is arranged between the end cover (1) and the first motor shaft (13); a bearing (16) is arranged between the support disc (6) and the second motor shaft (14).

6. The integrated ultrasonic motor automatic balancing device of claim 5, wherein: the partition plate (18) is integrated with the housing (2).

7. The integrated ultrasonic motor automatic balancing device of claim 6, wherein: the battery (8) is symmetrically fixed on the outer sides of the first circuit board (7) and the second circuit board (15) relative to the central line of the support disc (6).

8. The integrated ultrasonic motor automatic balancing device of claim 7, wherein: the first special-shaped balancing weight (10) and the second special-shaped balancing weight (5) are made of brass materials; the end cover (1) and the supporting disk (6) are made of aluminum alloy materials.

9. The integrated ultrasonic motor automatic balancing device of claim 8, wherein: the integrated ultrasonic motor automatic balancing device is fixed at the shaft end of the rotating device (11) through a connecting flange (12).

Technical Field

The invention relates to a balancing device, in particular to an integrated automatic balancing device of an ultrasonic motor.

Background

In modern industry, the problem of mechanical vibration is a great obstacle restricting the development of rotary machines, the exceeding of vibration caused by unbalanced rotor mass is the most frequent fault of rotary machines, which seriously affects the operation efficiency, working precision, service life and the like of equipment, and an automatic balancing device is always considered as an effective scheme for solving unbalanced vibration faults because the unbalanced fault of the rotary equipment can be automatically restrained on line, the balancing speed is high, and equipment does not need to be stopped in the balancing process.

At present, an automatic balancing device is mainly applied to the field of grinding machines, and common balancing forms mainly include a liquid injection type, a motor type and an electromagnetic slip ring type. The liquid injection type automatic balancing device is particularly suitable for high-speed and ultrahigh-speed occasions due to the advantages of simple structure, no movable part at a rotating part and the like, but has not been widely popularized and applied because of the problems of liquid splashing in the balancing process, gradually reduced balancing capacity along with balancing times, more auxiliary devices and the like. The electromagnetic slip ring type automatic balancing device is an active balancing actuator which drives a balance weight disc to rotate by using electromagnetic force, and is proposed by Dyer S.W. et al for the first time in 1998. The automatic balancing device has the advantages of no need of complex auxiliary devices, simple operation, high balancing speed and longer service life of equipment. However, the conventional balancing device is generally installed at the root of the main shaft extending section in the field of grinding machines, and can have a certain influence on the rigidity of the main shaft rotor device. The share of the market in the field of grinding machines is small up to now. Over a decade, many experts and scholars at home and abroad are dedicated to improving the electromagnetic slip ring type automatic balancing device, but the achievement of breakthrough is not achieved in both the installation mode and the integrated structure. The motor type automatic balancing device has the advantages of easiness in installation, no need of complex auxiliary devices, simplicity in operation, high balancing speed, high balancing precision and the like, can realize automatic balancing by reducing or increasing correction mass at a proper position of a rotor in operation to balance the rotor on line, and occupies an absolute dominant position in the current automatic balancing market.

Disclosure of Invention

The invention aims to overcome the problems of the existing electromagnetic slip ring type automatic balancing device in both installation mode and integrated structure, and provides an integrated ultrasonic motor automatic balancing device.

In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:

the invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: end cover, shell, baffle, first supersound motor, first dysmorphism balancing weight, second supersound motor, second dysmorphism balancing weight, supporting disk, battery, first circuit board and second circuit board, wherein: the inner part of the shell is divided into a left space and a right space by a partition plate, a first ultrasonic motor, a first special-shaped balancing weight and an end cover are arranged in the left space, the first ultrasonic motor is fixed in the center of the left side of the partition plate, a first motor shaft extends outwards from the first ultrasonic motor, the first special-shaped balancing weight is fixed on the first motor shaft through a key, the end cover is fixed at the left end of the shell, and the extended first motor shaft is supported by the end cover; the second ultrasonic motor is arranged in the right space, the second special-shaped balancing weight and the supporting plate are arranged in the right space, the second ultrasonic motor is fixed in the center of the right side of the partition plate, the second motor shaft extends outwards from the second ultrasonic motor, the second special-shaped balancing weight is fixed on the second motor shaft through a key, the right end of the shell is fixed on the supporting plate, the extending second motor shaft is supported by the supporting plate, a first circuit board and a second circuit board are symmetrically fixed on the outer side of the supporting plate, the first circuit board and the second circuit board are connected with binding posts of the first ultrasonic motor and the second ultrasonic motor through information lines respectively, and the battery is fixed on the outer sides of the first circuit board and the second circuit board and provides power for the first circuit board.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: the integrated ultrasonic motor automatic balancing device further comprises: and the protective cover is arranged on the outer sides of the first circuit board, the second circuit board and the battery and is fixed at the right end of the shell.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: the first special-shaped balancing weight and the second special-shaped balancing weight are semicircular wheels and are symmetrically arranged on two sides of the center line of the left space and the right space respectively.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: and the peripheries of the semicircular wheels of the first special-shaped balancing weight and the second special-shaped balancing weight are provided with skirt edges.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: a bearing is arranged between the end cover and the first motor shaft; and a bearing is arranged between the support plate and the second motor shaft.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: the baffle is integrated with the housing.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: the battery is symmetrically fixed on the outer sides of the first circuit board and the second circuit board relative to the central line of the support disc.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: the first special-shaped balancing weight and the second special-shaped balancing weight are made of brass materials; the end cover and the support disk are made of aluminum alloy materials.

The invention discloses an integrated ultrasonic motor automatic balancing device, which comprises: the integrated ultrasonic motor automatic balancing device is fixed at the shaft end of the rotating device through a connecting flange.

The key point of the invention is to design the ultrasonic motor wireless regulation automatic balancing device suitable for shaft end installation, the application field of the balancing device is expanded, the ultrasonic motor part in the device drives the rotating ring by friction force, so that the rotating ring and the fixed ring can realize reliable self locking in a non-adjustment state, the minimum rotating step angle of the rotating ring in the device is less than 1 degree, and the special-shaped balancing weight can be accurately driven to reach a designated position to inhibit unbalance. And the balancing device adopts an integrated structure, does not have an electromagnetic winding and a magnetic circuit, has compact structure and small volume, improves the balancing precision and greatly reduces the installation difficulty of the products.

The whole device is symmetrically arranged by taking the shell partition as a symmetrical plane, so that the balance quality of the balanced rotor is not influenced. The first ultrasonic motor and the second ultrasonic motor which are symmetrical are fixed on the shell partition plate, and the first circuit board and the second circuit board respectively drive the first special-shaped balancing weight and the second special-shaped balancing weight which are in key fit with the first ultrasonic motor and the second ultrasonic motor when receiving signals of the controller, so that the purpose of online rotor balance is achieved. The first heterosexual special-shaped balancing weight and the second heterosexual special-shaped balancing weight matched with the first ultrasonic motor and the second ultrasonic motor are made of brass, the first heterosexual special-shaped balancing weight and the second heterosexual special-shaped balancing weight are in reinforcing design with the matching parts of the first motor shaft and the second motor shaft, and the whole first heterosexual special-shaped balancing weight and the whole second heterosexual special-shaped balancing weight are designed into heterosexual structures for fully utilizing the space inside the shell and improving the balance maximum quality. The outer sides of the first irregular-shaped balancing weight and the second irregular-shaped balancing weight are respectively provided with an end cover and a supporting plate which are matched with the first motor shaft and the second motor shaft through bearings, and the end cover and the supporting plate are made of aluminum alloy so as to reduce the mass of the whole balancing device. The circuit boards of the two ultrasonic motors are arranged on the outer side of the supporting plate and are arranged to be symmetrical about an axis, the balance quality of the rotating device is prevented from being influenced by the self unbalance of the balancing device, and the circuit boards are connected with the two ultrasonic motors through lines so as to transmit control signals. A battery is disposed outside the circuit board.

The invention relates to an integrated ultrasonic motor automatic balancing device which can be arranged at the end part of a rotating shaft of a rotating device. The whole balancing device is fixed at the end part of the balanced rotating device through the connecting flange, and in the working process, the controller controls the ultrasonic motor to drive the special-shaped balancing weight inside to rotate step by step according to the measured vibration signal, so that a compensation vector is formed, and unbalanced vibration of the balanced rotating device is restrained on line.

Drawings

FIG. 1 is a schematic cross-sectional view of an integrated ultrasonic motor automatic balancing apparatus of the present invention mounted on a rotating apparatus;

FIG. 2 is a schematic front cross-sectional view of a second shaped weight;

fig. 3 is a schematic side view of a second shaped-weight block.

In fig. 1 to 3, reference numeral 1 is an end cap; reference numeral 2 is a housing; reference numeral 3 is a first ultrasonic motor; reference numeral 4 is a second ultrasonic motor; reference numeral 5 is a second shaped balancing weight; reference numeral 6 is a support disk; reference numeral 7 is a second circuit board; reference numeral 8 is a battery; reference numeral 9 is a shield; reference numeral 10 is a first shaped weight; reference numeral 11 is a rotating device; reference numeral 12 is a connecting flange; reference numeral 13 is a first motor shaft; reference numeral 14 is a second motor shaft; reference numeral 15 is a first circuit board; reference numeral 16 is a bearing; reference numeral 17 is a bond; reference numeral 18 is a separator; reference numeral 19 is a skirt.

Detailed Description

As shown in fig. 1, an integrated ultrasonic motor automatic balancing apparatus of the present invention is fixed to a shaft end of a rotating apparatus 11 through a connecting flange 12, and includes: the ultrasonic vibration testing device comprises an end cover 1, a shell 2, a partition plate 18, a first ultrasonic motor 3, a first special-shaped balancing weight 10, a second ultrasonic motor 4, a second special-shaped balancing weight 5, a supporting plate 6, a battery 8, a first circuit board 7, a second circuit board 15 and a shield 9, wherein the inside of the shell 2 is divided into a left space and a right space by the partition plate 18 in the shell 2, the partition plate 18 and the shell 2 are integrated, the first ultrasonic motor 3, the first special-shaped balancing weight 10 and the end cover 1 are arranged in the left space, the first ultrasonic motor 3 is fixed in the center of the left side of the partition plate 18, a first motor shaft 13 extends outwards from the first ultrasonic motor 3, the first special-shaped balancing weight 10 is fixed on a first motor shaft 13 through a key 17, the end cover 1 is fixed at the left end of the shell 2, a bearing 16 is arranged between the end cover 1 and the first motor; a second ultrasonic motor 4, a second special-shaped balancing weight 5 and a supporting plate 6 are arranged in the right space, the second ultrasonic motor 4 is fixed in the center of the right side of the partition plate 18, a second motor shaft 14 extends outwards from the second ultrasonic motor 4, the second special-shaped balancing weight 5 is fixed on the second motor shaft 14 through a key 17, the supporting plate 6 is fixed at the right end of the shell 2, a bearing 16 is arranged between the supporting plate 6 and the second motor shaft 14, the extended second motor shaft 14 is supported by the supporting plate 6, the first special-shaped balancing weight 10 and the second special-shaped balancing weight 5 are made of brass materials, the end cover 1 and the supporting plate 6 are made of aluminum alloy materials, as shown in fig. 2 and 3, the first shaped balance weight 10 and the second shaped balance weight 5 are semicircular wheels which are symmetrically installed at both sides of the center line of the left side space and the right side space, respectively, and a skirt 19 is provided at the outer circumference of the semicircular wheels.

A first circuit board 7 and a second circuit board 15 are symmetrically fixed on the outer side of a support plate 6, the first circuit board 7 and the second circuit board 15 are respectively connected with the binding posts of a first ultrasonic motor 3 and a second ultrasonic motor 4 through information wires, a battery 8 is symmetrically fixed on the outer sides of the first circuit board 7 and the second circuit board 15 relative to the central line of the support plate 6 to provide power for the first circuit board 7 and the second circuit board 15, and a shield 9 is arranged on the outer sides of the first circuit board 7, the second circuit board 15 and the battery 8 and fixed at the right end of a shell 2.

As shown in fig. 1, under the control of the controller, the first circuit board 15 and the second circuit board 7 respectively drive the first motor shaft 13 of the first ultrasonic motor 3 and the second motor shaft 14 of the second ultrasonic motor 4 to rotate relatively by an angle, and the first special-shaped balance weight 10 and the second special-shaped balance weight 5 also rotate relatively by an angle, so that the unbalanced vibration of the rotating device 11 is suppressed online.

During operation, the first shaped balance weight 10 and the second shaped balance weight 5 are driven by the first ultrasonic motor 3 and the second ultrasonic motor 4 to rotate, and rotate along with the rotating device 11 together with the first ultrasonic motor 3 and the second ultrasonic motor 4. When the balancing device needs to act, under the action of a control signal, the piezoelectric ceramics on the static rings in the first ultrasonic motor 3 and the second ultrasonic motor 4 drive the moving rings to drive the first motor shaft 13 and the second motor shaft 14 to rotate based on the inverse piezoelectric effect, so that the first special-shaped balancing weight 10 and the second special-shaped balancing weight 5 respectively rotate along with the first motor shaft 13 and the second motor shaft 14 to reach the designated positions, and the unbalanced vibration of the rotating device 11 is restrained on line.

In order to fully utilize the internal space of the structure, maximize the balanced mass as much as possible and reduce the axial size of the whole device, a bulge is designed above the balancing weight; in order to reduce the influence on the shaft, a reinforcing design is made on the part matched with the shaft; in order to reduce the axial size of the whole device during design, the counterweight plate is omitted, and the counterweight block and the counterweight plate are integrated into a whole.

The above-described embodiments are merely illustrative of the preferred embodiments of the automatic balancing apparatus of the present invention, and do not limit the scope of the automatic balancing apparatus of the present invention, and various modifications and improvements of the technical solution of the automatic balancing apparatus of the present invention made by those skilled in the art without departing from the design spirit of the automatic balancing apparatus of the present invention should fall within the protection scope defined by the claims of the automatic balancing apparatus of the present invention.