CN110943595B

CN110943595B - Self-positioning double-magnetic-circuit rotary voice coil motor

Info

Publication number: CN110943595B
Application number: CN201911228007.8A
Authority: CN
Inventors: 陶加山; 陶金; 王磊; 张�荣
Original assignee: Jiangsu Jinfeng Electrical Co ltd
Current assignee: Jiangsu Jinfeng Electrical Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2021-01-15
Anticipated expiration: 2039-12-04
Also published as: CN110943595A

Abstract

The invention relates to the technical field of voice coil motors, and discloses a self-positioning double-magnetic-circuit rotary type voice coil motor which comprises a shell, wherein a bearing is fixedly arranged in the shell, the voice coil motor is fixedly arranged in the bearing, an outer ring positioned at the top of the shell is fixedly arranged on the outer side of the voice coil motor, a top plate is fixedly arranged at the top of the voice coil motor, a partition plate is fixedly arranged in the shell, a through hole is formed in the partition plate, a connecting rod positioned below the partition plate is fixedly arranged in the shell, a motor is fixedly arranged at one end, away from the shell, of the connecting rod, and a rotating shaft is fixedly arranged on an output shaft of the motor. This can be from double magnetic circuit rotation type voice coil motor who fixes a position possesses advantages such as rotatable, has solved voice coil motor and has been used for when driving equipment and vibrate usually, like the vibration of shale shaker screening, the vibration effect is poor, can not vibrate the problem of inefficiency while rotating.

Description

Self-positioning double-magnetic-circuit rotary voice coil motor

Technical Field

The invention relates to the technical field of voice coil motors, in particular to a self-positioning double-magnetic-circuit rotary voice coil motor.

Background

The voice coil motor is one of direct drive type motors, has the advantages of high response, high speed, high acceleration, simple structure, small volume, convenient control and the like, the linear rotation two-degree-of-freedom voice coil motor can be better applied to a precise positioning system and automatic assembly systems of a plurality of different forms, the research of the linear rotation two-degree-of-freedom voice coil motor has important significance, when a linear voice coil motor rotor is in a motion state, a coil does the motion of cutting magnetic lines of force in a stator magnetic field, according to the lenz law, induced electromotive force is generated, the magnetic circuit structure of the rotary voice coil motor is evolved from the arc of the magnetic circuit structure of linear motion, the direction of a permanent magnet on the lower side of a linear magnetic circuit is overturned, the coil is acted by the moment around a central point of a magnetic yoke, then the original planar permanent magnet and.

According to the cylindrical voice coil motor with the gravity compensation function provided by the Chinese patent application publication No. CN 105281530A, the cylindrical voice coil motor with the gravity compensation function has the advantage of gravity compensation, and when the cylindrical voice coil motor with the gravity compensation function is commonly used for driving equipment to vibrate, if vibration of a vibrating screen is screened, the vibration effect is poor, the cylindrical voice coil motor cannot rotate while vibrating, the efficiency is low, and therefore the cylindrical voice coil motor with the gravity compensation function can be used for solving the problem.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a self-positioning double-magnetic-circuit rotary voice coil motor which has the advantages of being rotatable and the like, and solves the problems that when the voice coil motor is frequently used for driving equipment to vibrate, such as vibration screened by a vibrating screen, the vibration effect is poor, the equipment cannot rotate and vibrate at the same time, and the efficiency is low.

(II) technical scheme

In order to realize the rotatable purpose, the invention provides the following technical scheme: a self-positioning double-magnetic-circuit rotary voice coil motor comprises a shell, wherein a bearing is fixedly mounted inside the shell, a voice coil motor is fixedly mounted inside the bearing, an outer ring positioned at the top of the shell is fixedly mounted on the outer side of the voice coil motor, a top plate is fixedly mounted at the top of the voice coil motor, a partition plate is fixedly mounted inside the shell, a through hole is formed in the partition plate, a connecting rod positioned below the partition plate is fixedly mounted inside the shell, a motor is fixedly mounted at one end, away from the shell, of the connecting rod, a rotating shaft is fixedly mounted on an output shaft of the motor, a rotating wheel is fixedly mounted on the outer side of the rotating shaft, two sliding grooves which are symmetrically distributed left and right are formed in the bottom of the partition plate, sliding blocks are movably mounted inside the two sliding grooves, two the equal fixed mounting in bottom of connecting block has splint, the inside fixed mounting of casing has the spacing ring, the outside movable mounting of spacing ring has the change, the inside fixed mounting of change has two slurcam, two the equal fixed mounting in bottom of splint has a bottom plate, two the equal fixed mounting in back of the body one side of the back of the body of bottom plate has reset spring, the movable groove has been seted up in the front of casing, the inside fixed mounting of change has one end to run through and extend to the manual pole in the casing outside.

Preferably, the housing is cylindrical, and the top of the housing is open.

Preferably, the partition plate is located below the bearing, and the top of the partition plate is movably connected with the bottom of the voice coil motor.

Preferably, the top and the bottom of through-hole all are the opening form, and the top of pivot runs through and extends to the top of through-hole, pivot and voice coil motor fixed connection.

Preferably, the outer sides of the shell and the outer ring are both provided with scale grooves, and the shell is not contacted with the outer ring.

Preferably, the bottoms of the two sliding grooves are both in an open shape, and the two connecting blocks respectively penetrate through the openings at the bottoms of the two sliding grooves and extend to the outer sides of the grooves.

Preferably, the outer side of the rotating wheel is rough, and the rotating wheel is positioned at the opposite side of the two clamping plates.

Preferably, the clamping grooves are formed in the two clamping plates, and the size of each clamping groove is the same as that of the corresponding rotating wheel.

Preferably, the outer side of the rotating ring is provided with a sliding groove with the same size as the limiting ring, and the limiting ring is positioned on the inner side of the sliding groove.

(III) advantageous effects

Compared with the prior art, the invention provides a self-positioning double-magnetic-circuit rotary voice coil motor which has the following beneficial effects:

1. this can self-align double magnetic circuit rotation type voice coil motor, through installing the casing on the carrier, start voice coil motor and carry out work, voice coil motor works the roof that drives the top and carries out displacement vibration from top to bottom, when needs are rotatory, starter motor works, the motor rotates voice coil motor through driving the pivot rotation, make voice coil motor can rotate in the inside of bearing, thereby rotatable purpose has been reached, the rotatory in-process of outer loop produces the skew with the scale groove in the casing outside, thereby can follow the scale groove in the outer loop outside and judge rotatory angle with the scale groove in the casing outside, use under the condition that needs accurate rotation angle.

2. This can self-align double magnetic circuit rotation type voice coil motor, when rotatory needs braking, the rotation of motor can stop, it continues to rotate to drive the voice coil motor for reducing inertia, the handheld manual pole of accessible rotates, the rotatory change that drives of manual pole rotates, the rotatory inside two catch plates that drive of change rotate, the slider that two catch plates rotatory drive two splint moves in the inside of spout, make two splint to relative one side removal to the runner centre gripping, make runner and two splint contact friction, thereby brake the inertial rotation to the voice coil motor, control and the rotation angle of location voice coil motor, more convenient to use person's use.

Drawings

Fig. 1 is a cross-sectional view of a self-positioning dual magnetic circuit rotary voice coil motor according to the present invention;

FIG. 2 is a top view of a self-positioning dual magnetic circuit rotary voice coil motor according to the present invention;

FIG. 3 is a top view of a self-positioning dual magnetic circuit rotary voice coil motor active slot structure according to the present invention;

fig. 4 is a schematic structural diagram of a self-positioning dual-magnetic circuit rotary voice coil motor according to the present invention.

In the figure: the device comprises a shell 1, a bearing 2, a voice coil motor 3, a top plate 4, a partition plate 5, a through hole 6, an outer ring 7, a sliding block 8, a connecting block 9, a rotating wheel 10, a rotating ring 11, a limiting ring 12, a bottom plate 13, a sliding chute 14, a clamping plate 15, a rotating shaft 16, a sliding chute 17, a return spring 18, a motor 19, a connecting rod 20, a pushing plate 21, a manual rod 22 and a movable groove 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a self-positioning double-magnetic-circuit rotary voice coil motor comprises a shell 1, wherein the shell 1 is cylindrical, the top of the shell 1 is open, a bearing 2 is fixedly installed inside the shell 1, a voice coil motor 3 is fixedly installed inside the bearing 2, an outer ring 7 positioned at the top of the shell 1 is fixedly installed outside the voice coil motor 3, scale grooves are respectively formed in the outer sides of the shell 1 and the outer ring 7, the shell 1 is not contacted with the outer ring 7, a top plate 4 is fixedly installed at the top of the voice coil motor 3, a partition plate 5 is fixedly installed inside the shell 1 and positioned below the bearing 2, the top of the partition plate 5 is movably connected with the bottom of the voice coil motor 3, a through hole 6 is formed in the partition plate 5, a connecting rod 20 positioned below the partition plate 5 is fixedly installed inside the shell 1, a motor 19 is fixedly installed at one end, far away from the shell 1, of the connecting rod 20 can be PXF57-3K-57HS, a rotating shaft 16 is fixedly installed on an output shaft of a motor 19, the top and the bottom of the through hole 6 are both in an open shape, the top of the rotating shaft 16 penetrates through and extends to the top of the through hole 6, the rotating shaft 16 is fixedly connected with the voice coil motor 3, a rotating wheel 10 is fixedly installed on the outer side of the rotating shaft 16, two sliding grooves 14 which are symmetrically distributed left and right are formed in the bottom of the partition plate 5, the bottoms of the two sliding grooves 14 are both in an open shape, two connecting blocks 9 respectively penetrate through the openings in the bottoms of the two sliding grooves 14 and extend to the outer sides of the grooves 14, sliding blocks 8 are movably installed in the two sliding grooves 14, connecting blocks 9 are fixedly installed at the bottoms of the two sliding blocks 8, clamping plates 15 are fixedly installed at the bottoms of the two connecting blocks 9, a limiting ring 12 is fixedly installed in the shell 1, a rotating ring 11 is movably installed on the outer side of the limiting, two pushing plates 21 are fixedly arranged inside the rotating ring 11, bottom plates 13 are fixedly arranged at the bottoms of the two clamping plates 15, clamping grooves are formed in the two clamping plates 15, the size of each clamping groove is the same as that of the rotating wheel 10, return springs 18 are fixedly arranged on the opposite sides of the two bottom plates 13, a movable groove 23 is formed in the front surface of the shell 1, a manual rod 22 with one end penetrating through and extending to the outer side of the shell 1 is fixedly arranged inside the rotating ring 11, a sliding groove 17 with the size the same as that of the limiting ring 12 is formed in the outer side of the rotating ring 11, the limiting ring 12 is positioned on the inner side of the sliding groove 17, the shell 1 is arranged on a carrier, the voice coil motor 3 is started to work, the voice coil motor 3 works to drive the top plate 4 at the top to perform vertical displacement vibration, when the rotating is needed, the starting motor 19 works, the motor 19 rotates the voice coil motor 3, the voice coil motor 3 can rotate in the bearing 2, so that the purpose of rotation is achieved, the outer ring 7 deviates from the scale groove on the outer side of the shell 1 in the rotating process, so that the rotating angle can be judged from the scale groove on the outer side of the outer ring 7 and the scale groove on the outer side of the shell 1, the voice coil motor is suitable for being used under the condition of needing an accurate rotating angle, when the rotation needs braking, the rotation of the motor 19 can be stopped, the voice coil motor 3 is driven to continuously rotate by reducing inertia, the manual rod 22 can be rotated by holding the manual rod 22, the rotary ring 11 is rotated to drive the two push plates 21 in the rotary ring 11 to rotate, the two push plates 21 rotate to drive the slide blocks 8 of the two clamp plates 15 to move in the sliding groove 14, the two clamp plates 15 move to opposite sides to clamp the rotating wheel 10, and the rotating wheel 10 is in contact with the two clamp, therefore, the inertia rotation of the voice coil motor 3 is braked, and the rotation angle of the voice coil motor 3 is controlled and positioned, so that the voice coil motor is more convenient for a user to use.

When using, through installing casing 1 on the carrier, start voice coil motor 3 and work, voice coil motor 3 works and drives roof 4 at top and carry out displacement vibration from top to bottom, and when needing to rotate, start motor 19 works, and motor 19 rotates voice coil motor 3 through driving 16 rotations of pivot, makes voice coil motor 3 can rotate in the inside of bearing 2 to rotatable mesh has been reached.

In summary, in the self-positioning dual-magnetic circuit rotary voice coil motor, the housing 1 is mounted on the carrier, the voice coil motor 3 is started to operate, the voice coil motor 3 operates to drive the top plate 4 at the top to perform vertical displacement vibration, when rotation is required, the motor 19 operates, the motor 19 drives the rotating shaft 16 to rotate the voice coil motor 3, so that the voice coil motor 3 can rotate inside the bearing 2, thereby achieving the purpose of rotation, the outer ring 7 deviates from the scale groove at the outer side of the housing 1 during rotation, so that the rotation angle can be determined from the scale groove at the outer side of the outer ring 7 and the scale groove at the outer side of the housing 1, and the self-positioning dual-magnetic circuit rotary voice coil motor is suitable for use in the situation that an accurate rotation angle is required, when braking is required, the rotation of the motor 19 can be stopped, the voice coil motor 3 is driven to continue to rotate by, manual pole 22 is rotatory to drive swivel 11 and is rotated, swivel 11 is rotatory to drive inside two pushing plates 21 and is rotated, the slider 8 that two splint 15 were driven in two pushing plates 21 rotation moves in the inside of spout 14, make two splint 15 remove to relative one side and to the runner 10 centre gripping, make runner 10 and two splint 15 contact friction, thereby brake voice coil motor 3's inertial rotation, control and location voice coil motor 3's rotation angle, more convenient to use person's use, when having solved voice coil motor 3 and being commonly used for driving equipment and vibrating, vibration such as the vibration of shale shaker screening, the vibration effect is poor, can not vibrate while rotatory, the problem of inefficiency.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-positioning dual magnetic circuit rotary voice coil motor comprises a shell (1), and is characterized in that: the inner fixed mounting of the shell (1) is provided with a bearing (2), the inner fixed mounting of the bearing (2) is provided with a voice coil motor (3), the outer fixed mounting of the voice coil motor (3) is provided with an outer ring (7) positioned at the top of the shell (1), the top fixed mounting of the voice coil motor (3) is provided with a top plate (4), the inner fixed mounting of the shell (1) is provided with a partition plate (5), the inner part of the partition plate (5) is provided with a through hole (6), the inner fixed mounting of the shell (1) is provided with a connecting rod (20) positioned below the partition plate (5), one end of the connecting rod (20) far away from the shell (1) is fixedly provided with a motor (19), the output shaft of the motor (19) is fixedly provided with a rotating shaft (16), the outer side fixed mounting of the rotating shaft (16) is provided with a rotating wheel (, two the equal movable mounting in inside of spout (14) has slider (8), two the equal fixed mounting in bottom of slider (8) has connecting block (9), two the equal fixed mounting in bottom of connecting block (9) has splint (15), the inside fixed mounting of casing (1) has spacing ring (12), the outside movable mounting of spacing ring (12) has change (11), the inside fixed mounting of change (11) has two kickboards (21), two the equal fixed mounting in bottom of splint (15) has bottom plate (13), two the equal fixed mounting in the back of the body one side of the back of the body of bottom plate (13) has reset spring (18), movable groove (23) have been seted up in the front of casing (1), the inside fixed mounting of change (11) has one end to run through and extend to manual pole (22) in the casing (1) outside.

2. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the shell (1) is cylindrical, and the top of the shell (1) is open.

3. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the baffle plate (5) is positioned below the bearing (2), and the top of the baffle plate (5) is movably connected with the bottom of the voice coil motor (3).

4. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the top and the bottom of through-hole (6) all are the opening form, and the top of pivot (16) runs through and extends to the top of through-hole (6), pivot (16) and voice coil motor (3) fixed connection.

5. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the scale grooves are formed in the outer sides of the shell (1) and the outer ring (7), and the shell (1) is not in contact with the outer ring (7).

6. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the bottoms of the two sliding grooves (14) are both in an opening shape, and the two connecting blocks (9) respectively penetrate through the openings at the bottoms of the two sliding grooves (14) and extend to the outer sides of the grooves (14).

7. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the outer side of the rotating wheel (10) is a rough surface, and the rotating wheel (10) is positioned on one side opposite to the two clamping plates (15).

8. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: two the inside of splint (15) has all been seted up and has been pressed from both sides the groove, and the size that presss from both sides the groove is the same with runner (10).

9. A self-positionable, dual-magnetic circuit rotary voice coil motor according to claim 1, wherein: the outer side of the rotating ring (11) is provided with a sliding groove (17) with the same size as the limiting ring (12), and the limiting ring (12) is located on the inner side of the sliding groove (17).