CN220023006U - Motion mechanism of sound speaker - Google Patents

Abstract

A motion mechanism of a sound speaker belongs to the field of vehicle-mounted sound, a motor of the motion mechanism is fixed on a motor support in a main support, a worm is fixed with a motor output shaft, a bevel gear is meshed with the worm, a synchronous pulley A is installed on one side of the bevel gear, a magnet support for fixedly installing a magnet is installed on the other side of the bevel gear, bearings A, B at two ends of a bevel gear shaft are installed on the motor support, a magnetic braiding plate is fixed on the motor support, an output shaft penetrates through an inner shaft sleeve of the main support, the speaker is installed on the output shaft, a synchronous pulley B is installed on the output shaft and connected with the synchronous pulley A through a synchronous belt, and a disc spring is sleeved on the output shaft on one side of the synchronous pulley B and pressed through a locknut. The utility model has the advantages that: the loudspeaker rotary motion of the sound is realized, the noise is lower, the mechanism has a certain holding force after the motor is powered off, the loudspeaker is ensured not to deviate in position under a certain vibration frequency, and meanwhile, the loudspeaker can be broken by hands.

Description

Motion mechanism of sound speaker

Technical Field

The utility model belongs to the field of vehicle-mounted sound equipment, and particularly relates to a motion mechanism of a sound speaker.

Background

At present, most of vehicle-mounted sound equipment is arranged on the left side surface and the right side surface of an automobile, in order to pursue the sound quality effect of more stereoscopic surrounding, some vehicle-enterprises can arrange sound equipment on a front workbench of the automobile, the sound equipment on the workbench is in a lying state, the sound emitting direction is upward, the hearing effect of passengers in the automobile is influenced, and the vehicle-enterprises are urgently required to be provided with a sound equipment loudspeaker movement mechanism which can be erected when the sound equipment works and can better play the sound effect of passengers.

Disclosure of Invention

The utility model aims to overcome the defects, and provides a moving mechanism of an acoustic loudspeaker, which realizes the rotary movement of the acoustic loudspeaker, has lower noise, has a certain holding force after a motor is powered off, ensures that the loudspeaker cannot shift in position under a certain vibration frequency, and can be broken by a hand.

The utility model aims at realizing the following technical scheme: a motion mechanism of an acoustic speaker, characterized in that: including main support, motor support, speaker, motor, magnetism plaiting plate, magnet support, helical gear, synchronous pulley A, synchronous pulley B, worm, magnet, dish spring, main support internal fixation motor support, motor are fixed on the motor support, the worm is fixed with the motor output shaft, helical gear and worm meshing, synchronous pulley A is coaxial to install in one side of helical gear, the coaxial fixed magnet support of opposite side of helical gear, bearing A and bearing B are installed respectively at the both ends of bevel gear axle to install on the motor support through bearing cap A and bearing cap B, magnet is fixed on the magnet support, magnetism plaiting plate is fixed on the motor support, magnetism plaiting plate and magnet response, be equipped with the axle sleeve in the main support, the output shaft passes the axle sleeve, and the speaker is installed in one end of output shaft, synchronous pulley B installs at the other end of output shaft, is connected through the hold-in range with synchronous pulley A, the dish spring overlaps on the output shaft of synchronous pulley B one side, is pushed down through locknut.

And the two ends of the output shaft are respectively sleeved with a wear-resistant gasket A and a wear-resistant gasket B.

The beneficial effects of the utility model are as follows:

1. the two-stage transmission is adopted, the worm helical gear transmission is adopted at the primary stage, the structure is compact, the noise is low, the transmission is stable, and a relatively large transmission ratio can be generated; the second stage adopts synchronous belt transmission, the transmission is stable, the noise is low, and meanwhile, the placing position of the motor module can be flexibly adjusted by adjusting the center distance between the synchronous belt wheel A and the synchronous belt wheel B, so that the limitation of space when the product structure is designed is broken through.

2. The disc spring damping structure is designed on the output shaft, so that a certain holding force of the mechanism can be ensured after the motor is powered off, and the loudspeaker cannot easily shift in position; meanwhile, the damping mechanism can cover the virtual position of the gear due to the meshing gap, and the hand feeling of a hand touching the loudspeaker is improved.

3. Because the worm helical gear transmission of the first stage is not self-locking, when the loudspeaker is rotated by using larger external force, the transmission mechanism can freely rotate, and the risk of structural member damage is avoided.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic elevational view of the structure of fig. 1.

Fig. 3 is A-A view of fig. 2.

Fig. 4 is a B-B view of fig. 2.

Wherein:

1-main support, 2-loudspeaker, 3-motor, 4-magnetic plaiting plate, 5-magnet support, 6-helical gear, 7-synchronous pulley A, 8-synchronous pulley B, 9-synchronous belt, 10-locknut, 11-bearing A, 12-motor support, 13-bearing cap A, 14-worm, 15-bearing B, 16-output shaft, 17-magnet, 18-disc spring, 19-wear-resisting gasket A, 20-shaft sleeve, 21-wear-resisting gasket B, 22-mesoporous screw, 23-bearing cap B.

Detailed Description

Examples: as shown in the figure, a motion mechanism of an acoustic speaker is characterized in that: comprises a main bracket 1, a motor bracket 12, a loudspeaker 2, a motor 3, a magnetic braiding plate 4, a bevel gear 6, a synchronous pulley A7, a synchronous pulley B8, a worm 14, a magnet 17 and a disc spring 18,

the main bracket 1 is internally provided with a motor bracket 12, the motor 3 is fixed on the motor bracket 12, the worm 14 is riveted and fixed with a motor output shaft, the bevel gear 6 is meshed with the worm 14, one side of the bevel gear 6 is coaxially provided with a synchronous pulley A7, the magnet bracket 5 is fixed on the shaft at the other side of the bevel gear 6, two ends of the shaft of the bevel gear 6 are respectively provided with a bearing A11 and a bearing B15, and are respectively provided with a bearing cover A13 and a bearing cover B23 on the motor bracket 12, the magnet 17 is fixed on the magnet bracket 5, the magnet 5 rotates along with the bevel gear 6, the magnetic braiding plate 4 is fixed on the motor bracket 12, the magnetic braiding plate 4 is inducted with the magnet 17 for detecting the rotation angle of the bevel gear (6), the main bracket 1 is internally provided with a shaft sleeve 20, two ends of the output shaft 16 are respectively sleeved with a wear-resistant gasket A19 and a wear-resistant gasket B21, the output shaft 16 passes through the shaft sleeve 20, the wear-resistant gasket A19 and the wear-resistant gasket B21 are respectively arranged at two ends of the shaft sleeve 20, the output shaft 16 rotates in the shaft sleeve 20, the loudspeaker 2 is arranged at one end of the output shaft 16 and is pressed and fixed by a middle hole screw 22, the loudspeaker 2 rotates along with the output shaft 16, the synchronous pulley B8 is arranged at the other end of the output shaft 16 and rotates along with the output shaft 16, the synchronous pulley B8 and the synchronous pulley A7 are connected through the synchronous belt 9 to transmit power, the disc spring 18 is sleeved on the output shaft 16 at one side of the synchronous pulley B8, the locknut 10 is screwed on the output shaft 16 to press the disc spring 18, the deformation of the disc spring 18 can be changed by adjusting the screwing depth of the locknut 10, and the axial clamping force of the wear-resistant gasket A19 and the wear-resistant gasket B21 on the shaft sleeve 20 and the main support 1 is adjusted to finally obtain an ideal damping value;

working principle:

the motor 3 shaft drives the worm 14 to rotate, the worm 14 drives the bevel gear 6 meshed with the worm 14 to rotate, the synchronous pulley A7 rotates along with the bevel gear 6, the synchronous pulley A7 drives the synchronous pulley B8 to rotate through the synchronous belt 9, the synchronous pulley B8 is fixedly connected with the output shaft 16, the output shaft 16 is fixedly connected with the loudspeaker 2, and finally the rotation of the loudspeaker is realized, and meanwhile, the magnetic braiding plate 4 senses with the magnet 5 and is used for detecting the rotation angle of the output shaft of the mechanism.

While the utility model has been described by way of example, it should be noted that any simple variations, modifications, or other equivalent which would not take the form of inventive faculty, would be within the purview of one skilled in the art without departing from the core of the utility model.

Claims (2)

1. A motion mechanism of an acoustic speaker, characterized in that: including main support, motor support, speaker, motor, magnetism plaiting plate, magnet support, helical gear, synchronous pulley A, synchronous pulley B, worm, magnet, dish spring, main support internal fixation motor support, motor are fixed on the motor support, the worm is fixed with the motor output shaft, helical gear and worm meshing, synchronous pulley A is coaxial to install in one side of helical gear, the coaxial fixed magnet support of opposite side of helical gear, bearing A and bearing B are installed respectively at the both ends of bevel gear axle to install on the motor support through bearing cap A and bearing cap B, magnet is fixed on the magnet support, magnetism plaiting plate is fixed on the motor support, magnetism plaiting plate and magnet response, be equipped with the axle sleeve in the main support, the output shaft passes the axle sleeve, and the speaker is installed in one end of output shaft, synchronous pulley B installs at the other end of output shaft, is connected through the hold-in range with synchronous pulley A, the dish spring overlaps on the output shaft of synchronous pulley B one side, is pushed down through locknut.

2. The motion mechanism of an acoustic speaker of claim 1, wherein: and the two ends of the output shaft are respectively sleeved with a wear-resistant gasket A and a wear-resistant gasket B.