CN215344302U - Vibration motor - Google Patents

Abstract

The utility model discloses a vibration motor which comprises a first eccentric component (2) and a second eccentric component (3) which are respectively arranged on the end parts of a rotating shaft (14) close to a first end cover (11) and a second end cover (13), a positioning part (4) connected with the first end cover (11) or the second end cover (13), and a fixing part (5) which is sleeved on the rotating shaft (14) and is positioned on one side of the positioning part (4) far away from the first end cover (11) or the second end cover (13) connected with the positioning part. The positioning component (4) is used for installing the receiving component (61), and the fixing component (5) is used for installing the feedback component (62) and can force the feedback component (62) to rotate along with the rotating shaft (14). This vibrating motor not only can promote the stability of production process through the accuracy that improves vibrating motor control and the reliability of operation, can also reduce the risk of taking place the incident.

Description

Vibration motor

Technical Field

The utility model relates to the technical field of motors, in particular to a vibration motor.

Background

The vibration motor is a mechanical device capable of generating exciting force, can be used as a vibration source of various vibration machines such as vibration sieves, vibration feeders, jolt tables and storage bin arch breaking, is widely applied to industries such as mines, metallurgy, coal, building materials, chemical industry and the like, and has the characteristics of light weight, small volume, convenience in exciting force adjustment, high insulation grade and protection grade and the like.

Due to the special working mode of the vibration motor, the operation parameters of the vibration motor, such as the revolution number, the shaft displacement and the like, need to be collected and monitored through the information collection assembly in the use process, so that the control accuracy and the operation reliability of the vibration motor are ensured, and the bad influence on the production process or the safety accidents are avoided. However, with the continuous development and innovation of industrial technology, the production process becomes finer and finer, the precision degree of equipment becomes higher and higher, and higher requirements are also put forward on the control accuracy and the operation reliability of the vibration motor. Therefore, how to improve the accuracy of the vibration motor control and the reliability of the operation becomes a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vibration motor, which can improve the stability of a production process and reduce the risk of safety accidents by improving the control accuracy and the operation reliability of the vibration motor.

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

the utility model provides a vibration motor, which comprises a first end cover, a machine base, a second end cover, a rotating shaft, a rotor and a stator, wherein the first end cover, the machine base and the second end cover are sequentially connected, the rotating shaft penetrates through the first end cover and the second end cover, the rotor is arranged in the machine base and sleeved on the rotating shaft, the stator is sleeved on the rotor and connected with the inner wall of the machine base, and the vibration motor also comprises:

the first eccentric assembly is sleeved on the end part of the rotating shaft close to the first end cover;

the second eccentric assembly is sleeved on the end part of the rotating shaft close to the second end cover;

the positioning component is connected with the first end cover or the second end cover and is used for installing a receiving component of the information acquisition assembly;

the fixing part is sleeved on the rotating shaft, is positioned on one side, far away from the first end cover or the second end cover connected with the positioning part, of the positioning part, is used for installing a feedback part of the information acquisition assembly, and can force the feedback part to rotate along with the rotating shaft;

wherein the positioning means and the fixing means are capable of causing the receiving means to receive the operation information of the vibration motor fed back by the feedback means.

Further, the positioning component comprises a first base plate, a first boss and a first through hole, wherein the first base plate is partially abutted against the end face of the first end cover or the second end cover connected with the first base plate, the first boss is arranged on the first base plate and can be in clearance fit with the first end cover or the second end cover, the first through hole penetrates through the first base plate and the first boss and allows the rotating shaft to pass through, and the receiving component is arranged on one side, far away from the first end cover or the second end cover, of the first base plate.

Further, the fixed part comprises a second substrate, a second boss arranged on the second substrate and a second through hole which penetrates through the second substrate and the second boss and can be in interference fit with the rotating shaft, and the feedback part is sleeved on the second boss and abutted against the second substrate connected with the second boss.

Furthermore, a first key groove is formed in the side wall of the second through hole, a second key groove corresponding to the first key groove is formed in the rotating shaft, and the fixing part is connected with the rotating shaft through a connecting key.

Further, the diameter of the part of the rotating shaft between the fixing part and the rotor is larger than that of the part of the rotating shaft connected with the fixing part, a step is formed, one of the second base plate or the second boss abuts against the step, and the vibration motor further comprises an elastic retainer ring which is embedded in the rotating shaft and can abut against the other one of the second base plate and the second boss.

Further, the vibration motor further comprises two elastic check rings, and the two elastic check rings are embedded in the rotating shaft and abut against the second base plate and the second boss respectively.

Furthermore, the positioning component and the fixing component are both arranged in a cavity between the rotor and the first end cover or a cavity between the rotor and the second end cover in the machine base.

Further, the vibration motor further comprises a first protection cover connected with the first end cover and capable of accommodating the first eccentric assembly, and a second protection cover connected with the second end cover and capable of accommodating the second eccentric assembly.

Further, the vibrating motor further comprises an information acquisition assembly, and the information acquisition assembly is a photoelectric encoder, a magnetic encoder or a rotary encoder.

Furthermore, the first eccentric assembly comprises a first fixed seat sleeved on the end part of the rotating shaft and a plurality of first eccentric sheets stacked on one side of the first fixed seat far away from the first end cover; the second eccentric assembly is sleeved with a second fixing seat on the end part of the rotating shaft, and a plurality of second eccentric pieces are stacked and installed on the second fixing seat far away from one side of the second end cover.

According to the vibration motor provided by the utility model, the vibration motor is provided with a structure of a first end cover, a base, a second end cover, a rotating shaft, a rotor and a stator, and also comprises a first eccentric component and a second eccentric component which are respectively arranged on the end parts of the rotating shaft close to the first end cover and the second end cover, a positioning part connected with the first end cover or the second end cover and a fixing part which is sleeved on the rotating shaft and is positioned on one side of the positioning part far away from the first end cover or the second end cover connected with the positioning part. The positioning component is used for installing a receiving component of the information acquisition component, the fixing component is used for installing a feedback component of the information acquisition component and can force the feedback component to rotate along with the rotating shaft, and the positioning component and the fixing component can force the receiving component to receive the operation information of the vibration motor fed back by the feedback component.

Firstly, the limitation of the installation position on the receiving component can be reduced by fixing the receiving component on the end cover through the positioning component, so that the distance between the receiving component and the feedback component can be adjusted as required, and the situation that the signal reception of the receiving component is poor or the signal cannot be received due to the fact that the distance between the receiving component and the feedback component is too long can be avoided. Secondly, fix the feedback part on the pivot through the fixed part and force it to rotate along with the pivot can increase the steadiness of feedback part installation, and this can avoid appearing because of the feedback part that the aperture in the shaft hole on the feedback part and the diameter of pivot are mismatched and lead to the fact the problem that radial and/or axial displacement appear in the rotation in-process, and further, can also avoid bringing the interference for motor fault judgement because of the feedback part drunkenness. Above, through mutually supporting of locating part and fixed part, can force receiving component and feedback part to keep relatively stable position, can improve the degree of accuracy of the vibrating motor operating parameter that the information acquisition subassembly gathered from this, and then can improve the accuracy of vibrating motor control and the reliability of operation, this stability that not only can promote production process can also reduce the risk of taking place the incident.

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, 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 the drawings without creative efforts.

Fig. 1 is a sectional view of a vibration motor according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of the vibration motor of fig. 1;

FIG. 3 is a schematic structural diagram of a positioning member according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a fixing member according to an embodiment of the present invention.

The drawings are numbered as follows:

the eccentric assembly comprises a first eccentric assembly 2, a second eccentric assembly 3, a positioning component 4, a fixing component 5, a circlip 7, a first protective cover 8, a second protective cover 9, a first end cover 11, a machine base 12, a second end cover 13, a rotating shaft 14, a rotor 15, a stator 16, a first fixed seat 21, a first eccentric sheet 22, a second fixed seat 31, a second eccentric sheet 32, a first base plate 41, a first boss 42, a first through hole 43, a second base plate 51, a second boss 52, a second through hole 53, a first key groove 54, a receiving component 61, a feedback component 62, a second key groove 141 and a connecting key 142.

Detailed Description

The utility model aims to provide a vibration motor, which can prolong the service life of the motor and further reduce the use cost of the motor.

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 to 4, fig. 1 is a cross-sectional view of a vibration motor according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of the vibration motor of fig. 1; FIG. 3 is a schematic structural diagram of a positioning member according to an embodiment of the present invention; fig. 4 is a schematic structural view of a fixing member according to an embodiment of the present invention.

In a specific embodiment, the present invention provides a vibration motor, which includes a first end cap 11, a base 12, and a second end cap 13 connected in sequence, a rotating shaft 14 penetrating through the first end cap 11 and the second end cap 13, a rotor 15 disposed in the base 12 and sleeved on the rotating shaft 14, and a stator 16 sleeved on the rotor 15 and connected to an inner wall of the base 12. The vibrating motor further comprises a first eccentric assembly 2 sleeved on the end portion, close to the first end cover 11, of the rotating shaft 14, a second eccentric assembly 3 sleeved on the end portion, close to the second end cover 13, of the rotating shaft 14, a positioning part 4 connected with the first end cover 11 or the second end cover 13, and a fixing part 5 sleeved on the rotating shaft 14 and located on one side, far away from the first end cover 11 or the second end cover 13 connected with the positioning part 4, of the positioning part 4. Wherein, the positioning component 4 is used for installing the receiving component 61 of the information acquisition component, the fixing component 5 is used for installing the feedback component 62 of the information acquisition component and can force the feedback component 62 to rotate together with the rotating shaft 14, and the positioning component 4 and the fixing component 5 can cause the receiving component 61 to receive the operation information of the vibration motor fed back by the feedback component 62. The information acquisition assembly in this embodiment may preferably be an encoder with high measurement accuracy and low price, such as a photoelectric encoder, a magnetic encoder, or a rotary encoder, and may also select an information acquisition assembly of another model as long as it has a receiving component and a feedback component and can acquire operation parameters such as the number of revolutions and the shaft displacement of the vibration motor, and a person skilled in the art can do so by himself as needed, and it is not described herein again.

According to the vibration motor of the embodiment, the vibration motor comprises a first end cover 11, a base 12, a second end cover 13, a rotating shaft 14, a rotor 15 and a stator 16, and further comprises a first eccentric assembly 2 and a second eccentric assembly 3 which are respectively installed on the end portions of the rotating shaft 14 close to the first end cover 11 and the second end cover 13, a positioning part 4 connected with the first end cover 11 or the second end cover 13, and a fixing part 5 which is sleeved on the rotating shaft 14 and is located on one side, away from the first end cover 11 or the second end cover 13 connected with the positioning part 4, of the positioning part 4. Wherein, the positioning component 4 is used for installing the receiving component 61 of the information acquisition component, the fixing component 5 is used for installing the feedback component 62 of the information acquisition component and can force the feedback component 62 to rotate together with the rotating shaft 14, and the positioning component 4 and the fixing component 5 can cause the receiving component 61 to receive the operation information of the vibration motor fed back by the feedback component 62.

First, fixing the receiving part 61 to the end cap by the positioning part 4 can reduce the limitation of the installation position on the receiving part 61, so that the distance between the receiving part 61 and the feedback part 62 can be adjusted as required, thereby avoiding the situation that the receiving part 61 cannot receive signals or cannot receive signals due to too long distance between the receiving part 61 and the feedback part 62. Secondly, the feedback component 62 is fixed on the rotating shaft 14 through the fixing component 5 and is forced to rotate along with the rotating shaft 14, so that the installation stability of the feedback component 62 can be improved, the problem that the feedback component 62 moves radially and/or axially in the rotating process due to the fact that the hole diameter of the shaft hole in the feedback component 62 is not matched with the diameter of the rotating shaft 14 can be avoided, and further, the problem that the motor fault judgment is interfered due to the movement of the feedback component 62 can be avoided. Above, through mutually supporting of locating part 4 and fixed part 5, can force receiving part 61 and feedback part 62 to keep relatively stable position, can improve the accuracy degree of the vibrating motor operating parameter that the information acquisition subassembly gathered from this, and then can improve the accuracy of vibrating motor control and the reliability of operation, this stability that not only can promote production process, can also reduce the risk of taking place the incident.

In the present embodiment, the structure of the positioning member 4 is not particularly required, as long as it can fix the receiving member 61 on the end cap and can allow the receiving member 61 to adjust the distance from the feedback member 62. In a preferred embodiment, the positioning member 4 includes a first base plate 41 partially abutting against and connected to an end surface of the first end cap 11 or the second end cap 13 connected thereto, a first boss 42 provided on the first base plate 41 and capable of being clearance-fitted with the first end cap 11 or the second end cap 13, and a first through hole 43 penetrating the first base plate 41 and the first boss 42 and allowing the rotation shaft 14 to pass through, and the receiving member 61 is installed on a side of the first base plate 41 away from the first end cap 11 or the second end cap 13, as shown in detail in fig. 2. The positioning component 4 with the structure can enable the receiving component 61 to be installed more firmly, so that interference of vibration of the vibration motor on signal receiving of the receiving component 61 can be reduced, meanwhile, the positioning of the installation position of the positioning component 4 is facilitated through the matching of the first boss 42 and the end cover, obstruction on rotation of the rotating shaft 14 of the vibration motor is avoided, and therefore the control accuracy and the operation reliability of the vibration motor can be further improved.

In the present embodiment, the structure of the fixing member 5 is not particularly required, as long as it can fix the feedback member 62 on the rotating shaft 14 and rotate with the rotating shaft 14. In a preferred embodiment, the fixing part 5 includes a second base plate 51, a second boss 52 disposed on the second base plate 51, and a second through hole 53 penetrating the second base plate 51 and the second boss 52 and capable of interference-fitting with the rotating shaft 14, and the feedback part 62 is sleeved on the second boss 52 and abuts against the second base plate 51 connected thereto, as shown in detail in fig. 3. The interference fit can effectively prevent the fixing member 5 from moving radially and/or axially on the rotating shaft 14, and thus can prevent the feedback member 62 mounted thereon from moving, thereby further improving the accuracy of the vibration motor control and the reliability of the operation. While the second bosses 52 are provided to reduce the manufacturing cost of the fixing member 5 while securing the coupling strength and the coupling stability.

In addition to the above-described embodiments, the first key groove 54 is provided on the sidewall of the second through hole 53, the second key groove 141 corresponding to the first key groove 54 is provided on the rotating shaft 14, and the fixing member 5 and the rotating shaft 14 are connected by the connecting key 142. Therefore, the fixing part 5 can be further prevented from driving the feedback part 62 to move in the radial direction when the vibration motor operates, and the control accuracy and the operation reliability of the vibration motor can be further improved.

On the basis of the above-described embodiment, the diameter of the portion of the rotating shaft 14 between the fixing part 5 and the rotor 15 is larger than the diameter of the portion of the rotating shaft 14 connected to the fixing part 5, and forms a step, one of the second base plate 51 or the second boss 52 abuts on the step, and the vibration motor further includes a circlip 7, and the circlip 7 is embedded in the rotating shaft 14 and can abut on the other of the second base plate 51 and the second boss 52. The fixing part 5 is clamped between the step of the rotating shaft 14 and the elastic collar 7, so that the fixing part 5 can further prevent the feedback part 62 from moving in the axial direction when the vibration motor runs, and the control accuracy and the running reliability of the vibration motor can be further improved.

It should be noted that the above is only one embodiment for preventing the fixing component 5 from moving the feedback component 62 in the axial direction when the vibration motor is running, and other ways can be adopted by those skilled in the art, for example, in an embodiment not shown, the vibration motor further includes two elastic check rings 7, and the two elastic check rings 7 are embedded in the rotating shaft 14 and abut against the second base plate 51 and the second boss 52, respectively. That is, the fixing component 5 is clamped between the two elastic check rings 7 to prevent the fixing component from driving the feedback component 62 to move in the axial direction when the vibration motor operates, so as to further improve the control accuracy and the operation reliability of the vibration motor.

In the present embodiment, the positions where the positioning member 4 and the fixing member 5 are provided are not particularly required, and they may be provided on either side of both end surfaces of the first end cover 11 or the second end cover 13, as long as the receiving member 61 can be urged to receive the operation information of the vibration motor fed back by the feedback member 62 by the cooperation of the positioning member 4 and the fixing member 5. In a preferred embodiment, the positioning member 4 and the fixing member 5 are both provided in the housing 12 in a cavity between the rotor 15 and the first end cap 11 or in a cavity between the rotor 15 and the second end cap 13. Set up locating part 4 and fixed part 5 in frame 12, be about to the information acquisition subassembly install in frame 12, can form the protection to the information acquisition subassembly through vibrating motor's frame 12 and end cover from this to prevent dust, rainwater or collide with etc. and cause destruction for the information acquisition subassembly, and then can improve the life of information acquisition subassembly.

On the basis of any of the above embodiments, the vibration motor further comprises a first shield 8 connected to the first end cap 11 and capable of accommodating the first eccentric assembly 2, and a second shield 9 connected to the second end cap 13 and capable of accommodating the second eccentric assembly 3. This not only can form the protection to eccentric subassembly, prevents that it from being destroyed because of receiving external force striking, improves vibrating motor's life, can also prevent that eccentric subassembly from damaging surrounding equipment or causing the injury to people around when breaking away from pivot 14 because of the trouble, can further improve vibrating motor operational reliability from this, reduces the risk that takes place the incident. Simultaneously, when locating part 4 and fixed part 5 set up the one side of keeping away from frame 12 at first end cover 11 or second end cover 13, the protection casing can also protect the information acquisition subassembly, prevents that dust, rainwater or collide with etc. from causing the destruction for the information acquisition subassembly, and then can improve the life of information acquisition subassembly.

On the basis of any one of the above embodiments, the first eccentric assembly 2 includes a first fixing seat 21 sleeved on the end of the rotating shaft 14, and a plurality of first eccentric blades 22 stacked on one side of the first fixing seat 21 away from the first end cover 11; the second eccentric assemblies 3 each include a second fixing base 31 disposed on the end of the rotating shaft 14, and a plurality of second eccentric blades 32 stacked on one side of the second fixing base 31 away from the second end cap 13. Therefore, the user can adjust the number of the eccentric sheets according to the actual use requirement, and further adjust the exciting force generated by the vibration motor, and the control accuracy of the vibration motor can be further improved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The vibration motor provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a vibrating motor, its includes consecutive first end cover (11), frame (12) and second end cover (13), and runs through pivot (14) of first end cover (11) and second end cover (13), establish and establish in frame (12) and the cover is established rotor (15) and cover on pivot (14) are established rotor (15) are gone up and with stator (16) that the inner wall of frame (12) links to each other, its characterized in that, vibrating motor still includes:

the first eccentric component (2) is sleeved on the end part, close to the first end cover (11), of the rotating shaft (14);

the second eccentric component (3) is sleeved on the end part, close to the second end cover (13), of the rotating shaft (14);

the positioning component (4), the positioning component (4) is connected with the first end cover (11) or the second end cover (13) and is used for installing a receiving component (61) of the information acquisition assembly;

the fixing part (5) is sleeved on the rotating shaft (14), is positioned on one side, away from the first end cover (11) or the second end cover (13) connected with the positioning part (4), of the positioning part (4), and is used for mounting a feedback part (62) of the information acquisition assembly, and the feedback part (62) can be forced to rotate along with the rotating shaft (14);

wherein the positioning part (4) and the fixing part (5) can cause the receiving part (61) to receive the operation information of the vibration motor fed back by the feedback part (62).

2. The vibration motor according to claim 1, wherein the positioning member (4) includes a first base plate (41) partially abutting against and connected to an end face of the first end cap (11) or the second end cap (13) connected thereto, a first boss (42) provided on the first base plate (41) and capable of clearance-fitting with the first end cap (11) or the second end cap (13), and a first through hole (43) penetrating the first base plate (41) and the first boss (42) and allowing the rotation shaft (14) to pass therethrough, and the receiving member (61) is mounted on a side of the first base plate (41) away from the first end cap (11) or the second end cap (13).

3. The vibration motor according to claim 1, wherein the fixing member (5) comprises a second base plate (51), a second boss (52) provided on the second base plate (51), and a second through hole (53) penetrating the second base plate (51) and the second boss (52) and capable of being in interference fit with the rotating shaft (14), and the feedback member (62) is sleeved on the second boss (52) and abuts against the second base plate (51) connected thereto.

4. The vibration motor according to claim 3, wherein a first key groove (54) is formed in a side wall of the second through hole (53), a second key groove (141) corresponding to the first key groove (54) is formed in the rotating shaft (14), and the fixing member (5) and the rotating shaft (14) are connected by a connecting key (142).

5. Vibration motor according to claim 3 or 4, wherein the diameter of the portion of the rotating shaft (14) between the stationary part (5) and the rotor (15) is larger than the diameter of the portion of the rotating shaft (14) connected to the stationary part (5), and a step is formed, against which one of the second base plate (51) or the second boss (52) abuts, and the vibration motor further comprises a circlip (7), the circlip (7) being embedded in the rotating shaft (14) and being capable of abutting against the other of the second base plate (51) and the second boss (52).

6. Vibration motor according to claim 3 or 4, characterized in that it further comprises two circlips (7), both circlips (7) being embedded in the shaft (14) and abutting against the second base plate (51) and the second boss (52), respectively.

7. Vibrating motor according to any of the claims 1-4, characterised in that the positioning part (4) and the fixing part (5) are both arranged in the housing (12) in a cavity between the rotor (15) and the first end cover (11) or in a cavity between the rotor (15) and the second end cover (13).

8. Vibrating motor according to any of the claims 1-4, characterised in that it further comprises a first shield (8) connected to the first end cap (11) and able to house the first eccentric assembly (2), and a second shield (9) connected to the second end cap (13) and able to house the second eccentric assembly (3).

9. The vibration motor of any one of claims 1-4, wherein the information acquisition component is a photoelectric encoder, a magnetic encoder, or a rotary encoder.

10. The vibration motor according to any one of claims 1 to 4, wherein the first eccentric assembly (2) comprises a first fixed seat (21) sleeved on the end of the rotating shaft (14), and a plurality of first eccentric sheets (22) stacked and mounted on one side of the first fixed seat (21) far away from the first end cover (11); the second eccentric assembly (3) comprises a second fixed seat (31) arranged on the end portion of the rotating shaft (14) in a sleeved mode, and a plurality of second eccentric pieces (32) which are arranged on one side, far away from the second end cover (13), of the second fixed seat (31) in a stacked mode.

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