CN216290425U

CN216290425U - Exciting force adjustable vibrating motor

Info

Publication number: CN216290425U
Application number: CN202122770663.XU
Authority: CN
Inventors: 白碧璐; 葛昕雨
Original assignee: Zhejiang Value Medical Technology Co ltd
Current assignee: Zhejiang Value Medical Technology Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-12
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to a vibration motor with adjustable exciting force, which structurally comprises a shell, a stator, a rotor and a throwing block, wherein the stator, the rotor and the throwing block are arranged in the shell, the shell comprises a machine shell, an inner cover and a cover cap, the cover cap is detachably connected with the machine shell, the inner cover is matched with the machine shell to form a first space, the inner cover is matched with the cover cap to form a second space, a rotor shaft of the rotor extends from the first space to the second space, a driving part is arranged on the rotor shaft positioned in the second space, the cross section of the driving part comprises two or more edges, and the throwing block is provided with a through hole matched with the cross section of the driving part in shape and is detachably connected with the rotor shaft; the rotor shaft is detachably connected with the fixed piece, and the swinging block is limited on the driving part. The utility model has simple structure, can realize simple and easy quick assembly and disassembly, and is more suitable for application scenes of the fitness physical therapy equipment industry.

Description

Exciting force adjustable vibrating motor

Technical Field

The utility model relates to a vibration motor, in particular to a vibration motor with adjustable excitation force.

Background

The existing vibrating motor is mainly used in the engineering field, the weight of an eccentric block which needs to generate large exciting force and is adopted is also large (generally more than 500 g), in order to ensure the reliability of equipment, the common eccentric block is not detachable or added, each end of the eccentric block is provided with a fixed eccentric block and an adjustable eccentric block, and when the exciting force needs to be adjusted, the adjustable eccentric block and the fixed eccentric block are adjusted to form an included angle. And in body-building physiotherapy equipment trade, because the exciting force that needs is less but the change range is great (if 5.8kg to 14kg), adjust the precision not high and the degree of difficulty great through the contained angle, consequently adjust through the mode of dismouting flail piece more, but because the dismouting of flail piece can lead to the thickness of whole flail piece group and place position to change, the mounting needs adapt to different position changes, lead to current flail piece dismouting and fixed mode comparatively complicated, especially to the body-building physiotherapy practitioner who does not have the machinery field background, need train and adjust speed slower to current vibrating motor excitation force adjustment.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a vibration motor capable of adjusting exciting force in a dismounting mode, which has a simple structure, can realize simple and quick dismounting and is more suitable for application scenes of the fitness physiotherapy equipment industry.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a vibration motor with adjustable exciting force structurally comprises a shell, a stator, a rotor and a throwing block, wherein the stator, the rotor and the throwing block are arranged in the shell, the shell comprises a machine shell, an inner cover and a cover cap, the cover cap is detachably connected with the machine shell, the inner cover is matched with the machine shell to form a first space, the inner cover is matched with the cover cap to form a second space, a rotor shaft of the rotor extends from the first space to the second space, a driving part is arranged on the rotor shaft in the second space, the cross section of the driving part comprises two or more edges, and a through hole matched with the cross section of the driving part in shape is formed in the throwing block and is detachably connected with the rotor shaft; the rotor shaft is detachably connected with the fixed piece, and the swinging block is limited on the driving part.

The centrifugal pump further comprises an adjusting washer, the adjusting washer is arranged between the inner cover and the swinging block, and the fixing piece is arranged on the other side of the swinging block and applies force towards the adjusting washer to the swinging block.

Preferably, the rotor shaft is connected with the inner cover through a bearing; the adjusting washer is arranged between the bearing and the throwing block, and the end face of the bearing close to the adjusting washer is limited by the elastic retainer ring.

Preferably, the rotor shaft is provided with a thread, and the fixing member is a nut.

Preferably, the leading portion includes a first plane and a second plane parallel to each other.

Further, the number of the swinging blocks on one side of the rotor shaft is at least 2.

Preferably, the throwing block comprises a connecting portion and a working portion, the through hole is formed in the connecting portion, the working portion is fan-shaped, and linear or concave holding surfaces are arranged on two sides of the fan-shaped.

Preferably, the mass range of the throwing blocks is 20-100 g, and the number of the throwing blocks on one side of the rotor shaft ranges from 2 to 7.

Preferably, the cover surface opposite the slinger is at least partially transparent.

Preferably, the vibration motor further comprises a frequency converter, and the frequency converter is externally connected with or internally arranged in the vibration motor.

Compared with the prior art, the utility model has the following advantages and effects:

1. the driving part with two or more than two edges is arranged in the second space, so that a user can quickly realize the dismounting and mounting of the throwing block on the rotor shaft to complete the adjustment;

2. the adjusting washers are arranged, so that a user can select the adjusting washers with proper length to adapt to adjustment of the swinging block in a wider range; meanwhile, the adjusting washer and the elastic retainer ring limit the axial displacement of the bearing together, and the function of separating the bearing from the throwing block is achieved;

3. the arrangement of the fan-shaped piece handheld surface is suitable for a user to take out the throwing block from a small space, and particularly for a small vibration motor arranged at the bottom of equipment, the small and light throwing block can meet the field requirement by adopting the small and light throwing block mass and meet the excitation force adjustment requirement by adopting the large throwing piece quantity;

4. the transparent cover cap can enable a user to know the total mass of the throwing block without detaching the cover cap;

5. the frequency converter can realize the adjustment of the vibration frequency and the adjustment of the exciting force by adjusting the rotating speed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of the structure of the present invention.

Fig. 2 is a schematic structural diagram of a throwing block.

Fig. 3 is a schematic structural diagram of a flail block group.

Fig. 4 is a schematic structural view of the rotor.

FIG. 5 is a cross-sectional view of an embodiment of the leading portion.

Fig. 6 is another embodiment of the cross section of the entraining portion.

Fig. 7 is a schematic structural diagram of the assembled structure of the present invention.

Description of reference numerals:

casing 1 casing 11 inner cover 12

Cover 13 covers transparent surface 131 and top cover 14

First space 15 second space 16 stator 2

Rotor 3 rotor shaft 31 leading part 311

Thread 312 flail block 4 through hole 41

Working part 43 hand-held surface 431 of connecting part 42

Nut 5 adjusting washer 6 bearing 7

Elastic retainer ring 8 control plate 9

Detailed Description

The present invention will be described in further detail with reference to examples, which are illustrative of the present invention and are not to be construed as being limited thereto.

Example 1:

as shown in fig. 1 and 7, the present embodiment includes a stator 2, a rotor 3 and a slinger 4 disposed within a housing 1, wherein the casing 1 is composed of a casing 11, an inner cover 12, a cover 13 and a top cover 14, the casing 11 is matched with the inner covers 12 at two sides to limit the stator 2 in a first space 15, the cover 13 is connected with the casing 11 through screws and is separated by the inner covers 12 to form a second space 16, the rotor 3 extends from the first space 15 to the second space 16 and drives the throwing block 4 to rotate in the second space 16 to generate vibration, the casing 11 is matched with the top cover to limit the control panel 9 in the casing 1, the control board 9 can be provided with a frequency conversion circuit or realize current conversion through the access of an external frequency converter, thereby changing the rotation speed of the rotor, such as adjusting the alternating current from 50Hz to 60Hz, and increasing the rotation speed from 1500rpm to 1800rpm, thereby increasing the exciting force and vibration frequency of the vibration motor. Wherein the bearing 7 is connected on the inner cover 12 in an interference manner, the rotor 3 is connected on the inner cover 12 through the bearing 7, a limiting groove is arranged in a hole of the inner cover 12 for accommodating the bearing 7, an elastic retainer ring 8 is arranged in the limiting groove, the bearing 7 is limited to axially move towards the direction of the second space 16 through the elastic retainer ring 8, an adjusting washer 6 sleeved outside the rotor 3 limits the inner ring of the bearing 7 and separates the bearing 7 from the swinging block 4, in some embodiments, the fixing part is a nut 5 matched with a thread 312 (the thread structure is not shown in figure 4) on the rotor shaft 31, the other end of the adjusting washer 6 is contacted with the swinging block 4, so that the swinging block 4 is axially locked by matching the nut 5, in other embodiments, a boss structure is arranged on the rotor shaft 31, the cross section of the boss is larger than the cross section of the front end of the rotor shaft 31, so as to stop the swinging block 4, and then the swinging block 4 is axially locked by matching the nut 5, in other embodiments, the two locking modes are used simultaneously, for example, when the number of the flail blocks is small, in order to keep the position of the flail block at the end of the thread 312 (see fig. 4) of the rotor shaft 31, the adjusting washer 6 with a long length is selected, the nut 5 is matched with the adjusting washer 6 to realize locking, and when the number of the flail blocks is large, the adjusting washer 6 with a short length is selected, and the nut 5 is matched with the boss to realize locking; in other embodiments, the nut 5 may be replaced by a different fixing member, for example, by forming a slot on the rotor shaft 31 and limiting the throwing block 4 by a snap.

As shown in fig. 2 to 6, the throwing block 4 is substantially in the shape of a sector, a protrusion is arranged in the middle of one side of the throwing block 4 opposite to the cambered surface as a connecting part 42, a through hole 41 matched with the rotor shaft 31 is arranged in the protrusion, the cambered surface side is a working part 43, two sides of the working part 43 are in a straight line shape, in some embodiments, the sides are concave to allow entry of a user's fingers, the sides forming a hand-held surface 431, because the mass of the throwing block 4 adopted in the body-building physical therapy equipment industry is small, the general range is 20-100 g, the thickness and the area of the throwing block 4 are small, when throwing block 4 stacks as shown in fig. 3, the simple fan-shaped throwing block is difficult for a user to separate throwing block 4 from the throwing block group in a narrow space (such as the vibration motor is positioned on the bottom surface of the equipment or close to the side surface of a wall) due to the fact that the two sides lack of the surface capable of applying force, and the throwing block 4 can be conveniently disassembled and assembled by the user due to the arrangement of the handheld surface 431. The through hole 41 of the throwing block 4 is matched with the driving part 311 of the rotor shaft 31 in shape, the driving part 311 is arranged into a first plane and a second plane which are parallel to each other and an approximate rectangle with arc surfaces at two sides, and can be arranged into an approximate hexagon as shown in figure 6 in partial embodiments, thereby further reducing the possibility of radial displacement of the throwing block 4 in the rotating process, when the driving part 311 is arranged into a shape which is symmetrical left and right and up and down, a user can directly mount a throwing block through overturning to achieve the offsetting effect, like the side mounting of 5 throwing blocks, the exciting force of 8kg can be generated, when mounting one of 5 throwing blocks through overturning, only 3 throwing blocks which are actually used generate the exciting force of 5kg, the number of the throwing blocks 4 which need to be adjusted can be reduced, and when the adjusting washer 6 is used as an axial locking piece, the length of the adjusting washer 6 does not need to be adjusted frequently, the number of the throwing blocks 4 on one side is preferably set to be 2 to 7; in another embodiment, the driving portion 311 may be configured as a structure with two edges, such as a circular arc and a straight line as shown in fig. 5, and also can drive the throwing block 4 to rotate without other components.

When the vibration motor is used, a user firstly selects a desired size in an excitation force range (generally 5.8kg to 14kg) of the vibration motor, then observes whether the throwing piece 4 in the vibration motor can output the excitation force through the cover transparent surface 131 on the cover 13, if not, adjusts the quantity and the orientation of the throwing piece 4 by detaching the screw and the nut 5 on the cover 13, and also needs to replace the adjusting washer 6 when the quantity adjusting span of the throwing piece 4 is large, the adjustment can be completed by one hand under the condition that the user does not look at the vibration motor, the nut 5 is screwed after the adjustment is completed, and the vibration motor can be used after the cover 13 is installed. Similarly, the adjustment may be performed only by the inverter without adjusting the centrifugal mass 4, but the vibration frequency may also change at the same time.

In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes of the structure, the characteristics and the principle of the utility model which are described in the patent conception of the utility model are included in the protection scope of the patent of the utility model. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides an exciting force adjustable vibrating motor, includes casing and stator, rotor and the flail piece of setting in the casing, its characterized in that: the shell comprises a shell, an inner cover and a cover cap, the cover cap is detachably connected with the shell, the inner cover is matched with the shell to form a first space, the inner cover is matched with the cover cap to form a second space, a rotor shaft of the rotor extends from the first space to the second space, a driving part is arranged on the rotor shaft in the second space, the cross section of the driving part comprises two or more than two edges, and a through hole matched with the cross section of the driving part in shape is formed in the throwing block; the rotor shaft is detachably connected with the fixed piece, and the swinging block is limited on the driving part.

2. The vibration motor with adjustable exciting force according to claim 1, wherein: the centrifugal pump further comprises an adjusting washer, the adjusting washer is arranged between the inner cover and the throwing block, and the fixing piece is arranged on the other side of the throwing block and applies force towards the adjusting washer to the throwing block.

3. The vibration motor with adjustable excitation force according to claim 2, wherein: the rotor shaft is connected with the inner cover through a bearing; the adjusting washer is arranged between the bearing and the throwing block, and the end face of the bearing close to the adjusting washer is limited by the elastic retainer ring.

4. The vibration motor with adjustable excitation force according to claim 2, wherein: the rotor shaft is provided with threads, and the fixing piece is a nut.

5. The vibration motor with adjustable exciting force according to claim 1, wherein: the driving portion comprises a first plane and a second plane which are parallel to each other.

6. The vibration motor with adjustable exciting force according to claim 1, wherein: the number of the throwing blocks on one side of the rotor shaft is at least 2.

7. The vibration motor with adjustable excitation force according to claim 6, wherein: the throwing block comprises a connecting portion and a working portion, the through hole is formed in the connecting portion, the working portion is fan-shaped, and linear or concave holding faces are arranged on two sides of the fan-shaped.

8. The vibration motor with adjustable excitation force according to claim 6, wherein: the mass range of the throwing blocks is 20-100 g, and the number range of the throwing blocks on one side of the rotor shaft is 2-7.

9. The vibration motor with adjustable exciting force according to claim 1, wherein: the cover surface opposite the flinger is at least partially transparent.

10. The vibration motor with adjustable exciting force according to claim 1, wherein: the vibration motor is characterized by further comprising a frequency converter, wherein the frequency converter is externally connected or internally arranged in the vibration motor.