CN219035495U

CN219035495U - Motor and transmission gear

Info

Publication number: CN219035495U
Application number: CN202222535738.0U
Authority: CN
Inventors: 陈军
Original assignee: Taizhou Junhao Electromechanical Technology Co ltd
Current assignee: Taizhou Junhao Electromechanical Technology Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-05-16
Anticipated expiration: 2032-09-21

Abstract

The utility model provides a motor and a transmission gear, wherein the transmission gear comprises a lower transmission part which is used for being connected with an output shaft of the motor; an upper transmission part disposed at an upper side of the lower transmission part; the number of teeth of the lower transmission part is larger than that of teeth of the upper transmission part, and the radial dimension of the lower transmission part is larger than that of the upper transmission part; the axle center of the upper transmission part and the axle center of the lower transmission moving part are eccentrically arranged. Therefore, the rotation of the motor can be reduced in speed when being transmitted to the mechanism through the tooth number difference and the radial size difference between the upper transmission part and the lower transmission part, normal driving of the mechanism is realized, and the structure is simpler. And the eccentric values of the shaft center of the shaft hole and the center of the cover body are matched with the eccentric values between the shaft center of the upper transmission part and the shaft center of the lower transmission moving part. Thereby realizing the enhancement of the acting force of the mechanism drive connected with the motor through the eccentrically arranged transmission gear and the output shaft.

Description

Motor and transmission gear

Technical Field

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

Background

Motors are commonly used as a driving source, and are classified into various types, including a micro motor, which is also called a motor, and has a small volume and a small capacity, and generally has an output power of hundreds of watts or less. The device is commonly used in a control system to realize functions such as detection, calculation, amplification, execution or conversion of electromechanical signals or energy or is used for driving mechanical loads, and can also be used as an alternating current power supply and a direct current power supply of equipment. At the moment, the related structure of the micro motor is not ideal due to the small volume, so that the power of the micro motor is weaker, and the transmission structure for connecting the motion mechanism is also complex for generating enough driving force.

Disclosure of Invention

In view of the above, the present utility model is to provide a motor and a transmission gear with a stronger driving force and a simpler transmission gear structure.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a drive gear, comprising:

the lower transmission part is used for being connected with an output shaft of the motor;

an upper transmission part disposed at an upper side of the lower transmission part;

the number of teeth of the lower transmission part is larger than that of teeth of the upper transmission part, and the radial dimension of the lower transmission part is larger than that of the upper transmission part;

the axle center of the upper transmission part and the axle center of the lower transmission moving part are eccentrically arranged.

Preferably, a connecting column is arranged between the upper transmission part and the lower transmission part, the upper transmission part is connected with the lower transmission part through the connecting column, and the upper transmission part and the lower transmission part are detachably arranged on the connecting column.

Preferably, the upper end and the lower end of the connecting column are respectively provided with a clamping groove, the upper side of the lower transmission part and the lower side of the upper transmission part are respectively provided with a clamping block matched with the clamping grooves, and the upper transmission part and the lower transmission part are detachably connected on the connecting column through the arrangement of the clamping blocks in the clamping grooves.

Preferably, threaded holes are formed in the upper end and the lower end of the connecting column, connecting blocks with external threads, which are matched with the threaded holes, are arranged on the upper side of the lower transmission part and the lower side of the upper transmission part, and the upper transmission part and the lower transmission part are connected in a detachable mode on the connecting column through threaded connection.

Preferably, the upper transmission part and the lower transmission part are integrally formed.

A motor comprises a motor main body and an output shaft arranged on the motor main body, wherein the motor main body drives the output shaft to rotate,

the transmission gear is connected with the output shaft, and the output shaft drives the transmission gear to rotate.

Preferably, the motor further comprises a motor end cover provided on the motor body, the motor end cover comprising:

the lower end of the cover body extends downwards to form a connecting part for connecting the motor main body, and an installation cavity is formed in the connecting part;

a shaft penetrating portion provided on an upper side of the cover;

the shaft penetrating part is provided with a shaft penetrating hole penetrating through the shaft penetrating part, and the shaft penetrating hole is communicated with the mounting cavity; the upper end of the motor main body is at least partially arranged in the mounting cavity, and the output shaft penetrates through the shaft penetrating hole to extend to the upper side of the shaft penetrating part.

Preferably, the shaft center of the shaft hole and the center of the cover body are eccentrically arranged, and the eccentric value of the shaft center of the shaft hole and the center of the cover body is matched with the eccentric value between the shaft center of the upper transmission part and the shaft center of the lower transmission moving part.

Preferably, the peripheral surface of the connecting part is provided with a threading hole, and the threading hole is communicated with the mounting cavity and the outer side of the cover body.

Preferably, a plurality of mounting posts are arranged on the peripheral surface of the connecting part, one side of each mounting post and the connecting part are integrally formed, the other side of each mounting post extends outwards, and mounting holes for mounting the motor are formed in the mounting posts;

the connecting portion is provided with the boss on the global, the one end setting of boss is in the week side of through wires hole, and the other end extends to the erection column.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

1. according to the utility model, the rotation of the motor can be reduced in speed when being transmitted to the mechanism through the tooth number difference and the radial size difference between the upper transmission part and the lower transmission part, so that the normal driving of the mechanism is realized, and the structure is simpler. And the eccentric values of the shaft center of the shaft hole and the center of the cover body are matched with the eccentric values between the shaft center of the upper transmission part and the shaft center of the lower transmission moving part. Thereby realizing the enhancement of the acting force of the mechanism drive connected with the motor through the eccentrically arranged transmission gear and the output shaft.

2. According to the utility model, the change of the gear and motor transmission ratio can be realized by changing the number of teeth and the radial size of the upper transmission part or the lower transmission part with different specifications, and the change of the distance between the upper transmission part and the lower transmission part can be realized by changing the connecting columns with different lengths, so that the transmission gear can be simply connected with parts of different mechanisms, and further, different use environments can be adapted to meet more use requirements.

3. The utility model can lighten the whole weight of the motor end cover through the groove, and can reduce the contact area between the motor main body and the motor end cover through the cavity formed between the groove and the motor main body, so that the heat generated by the motor main body can be effectively dispersed, and a certain heat dissipation effect is further achieved, and the temperature of the motor can be stably kept within a certain range, thereby ensuring the normal use of the motor.

4. The threading hole can be used for threading wires and can also be used for outward transmission of heat in the groove, so that the heat dissipation effect of the motor is further improved.

5. According to the utility model, the strength of the cover body on the periphery of the threading hole can be effectively enhanced through the reinforcing block, and the service life of the motor end cover is prolonged.

6. The utility model increases the thickness of the place where the output shaft of the motor is installed through the protruding part, thereby enhancing the stability of the output shaft during installation and movement.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1;

FIG. 2 is a schematic structural view of a motor end cap;

FIG. 3 is a schematic view of the internal structure of the motor end cap;

fig. 4 is a cross-sectional view of the transmission gear of embodiment 1;

fig. 5 is a cross-sectional view of the transmission gear of embodiment 2.

Reference numerals: 1. a motor main body; 2. an output shaft; 21. a gear portion;

3. a motor end cover; 31. a cover body; 311. a connection part; 312. a mounting cavity; 32. a shaft penetrating portion; 321. penetrating through the shaft hole; 33. a groove; 34. a threading hole; 35. a mounting column; 351. a mounting hole; 36. a reinforcing block; 37. a protruding portion;

4. a transmission gear; 41. an upper transmission part; 42. a lower transmission part; 421. a clamping block; 422. a connecting block; 43. a connecting column; 431. a clamping groove; 432. and (3) a threaded hole.

Detailed Description

The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.

Example 1:

as shown in fig. 1 to 4, a motor includes a motor body 1, an output shaft 2, a motor end cover 3, and a transmission gear 4. The motor main body 1 includes parts such as a housing, a stator, and a rotor. The output shaft 2 is arranged on the motor main body 1, and after the motor main body 1 is electrified, acting force generated between the stator and the rotor drives the output shaft 2 to realize the rotation of the output shaft 2. The motor end cover 3 is arranged on the motor main body 1 for mounting the motor and protecting parts in the motor main body 1. Wherein, the output shaft 2 passes through the motor end cover 3 and extends to the outside of the motor end cover 3, and the transmission gear 4 is connected with the output shaft 2. After the motor main body 1 drives the output shaft 2 to rotate, the output shaft 2 can drive the transmission gear 4 to rotate again, so that a mechanism connected with the transmission gear 4 is driven to operate, and finally, the motor drives the mechanism connected with the motor main body.

In fig. 2 and 3, the motor end cover 3 includes a cover 31 and a shaft portion 32. The lower end of the cover 31 extends downward to form a connection portion 311 for connecting the motor body 1, and a mounting cavity 312 is formed in the connection portion 311. The shaft penetrating portion 32 is provided on the upper side of the cover 31. The shaft penetrating portion 32 is provided with a shaft penetrating hole 321 penetrating the shaft penetrating portion 32, and the shaft penetrating hole 321 is communicated with the mounting cavity 312. Wherein, the axle center of the axle hole 321 and the center of the cover 31 are arranged eccentrically, so that the torsion of the motor is enhanced while adapting to some mechanism parts, and the acting force generated by the motor can be larger. The upper inner wall of the mounting cavity 312 is at least partially recessed upwards to form a plurality of grooves 33, and when the motor end cover 3 is arranged on the motor, a cavity exists between the grooves 33 and the motor main body 1. Therefore, the overall weight of the motor end cover 3 can be reduced through the groove 33, the contact area between the motor body 1 and the motor end cover 3 can be reduced through the cavity formed between the groove 33 and the motor body 1, so that heat generated by the motor body 1 can be effectively dispersed, a certain heat dissipation effect is further achieved, and the temperature of the motor can be stably kept within a certain range, so that the normal use of the motor is ensured.

Further, referring to fig. 1 to 3, a threading hole 34 for the electric wire to pass through is formed on the circumferential surface of the connection portion 311, and the threading hole 34 is formed on one side of the groove 33 and is communicated with the groove 33 and the installation cavity 312. Thus, the threading hole 34 can be used for threading the electric wire, and can also be used for outward transmission of heat in the groove 33, so that the heat dissipation effect of the motor is further improved.

Further, referring to fig. 1-3, a plurality of mounting posts 35 are disposed on the peripheral surface of the connecting portion 311, one side of the mounting post 35 is integrally formed with the connecting portion 311, the other side extends outwards, mounting holes 351 for mounting the motor are formed in the mounting post 35, and the mounting of the motor is achieved by passing through the mounting holes 351 and the mounting position of the motor through fasteners. The connection portion 311 has a reinforcing block 36 provided on the peripheral surface thereof, one end of the reinforcing block 36 is provided on the peripheral side of the threading hole 34, and the other end extends to the mounting post 35. Because the strength of the cover 31 around the threading hole 34 is low, the cover 31 around the threading hole 34 is easily affected by external force during the use of the motor, such as collision, thermal deformation, abrasion, etc., and may be damaged. Therefore, the strength of the cover body 31 on the periphery side of the threading hole 34 can be effectively enhanced through the reinforcing block 36, and the service life of the motor end cover 3 is prolonged.

Accordingly, as shown in fig. 3, a protrusion 37 is provided between the plurality of grooves 33, and the protrusion 37 extends from one side of the installation cavity 312 to the other side, thereby separating the plurality of grooves 33. In this embodiment, the grooves 33 are uniformly distributed on the upper end of the mounting cavity 312, so that the stress of the motor end cover 3 can be more uniform. Wherein, both ends of the protruding portion 37 extend to the inner wall of the installation cavity 312 and are integrally formed with the inner wall of the installation cavity 312, thereby increasing the strength of a certain connection between the protruding portion 37 and the installation cavity 312.

As shown in fig. 3, the shaft penetrating portion 32 and the shaft penetrating hole 321 are both located in the middle of the protruding portion 37, and connection holes for connecting the motor body 1 are formed at two ends of the protruding portion 37, so that the motor body 1 is adapted to the motor body 1, a part of the motor body 1 is in contact connection with the protruding portion 37, and a connection between the motor end cover 3 and the motor body 1 is achieved by passing through the connection holes and the housing of the motor body 1 through fasteners such as bolts. The shaft penetrating part 32 and the shaft penetrating hole 321 positioned in the middle of the protruding part 37 can increase the thickness of the place where the output shaft 2 of the motor is installed through the protruding part 37, thereby enhancing the stability of the output shaft 2 during installation and movement.

As shown in fig. 3, the number of the grooves 33 is two in the present embodiment, and the protrusions 37 are located between the two grooves 33 on both sides of the upper end of the mounting chamber 312, respectively. Thereby enabling the functional effect of the groove 33 to be ensured while making the structure simpler.

In this embodiment, the types of motors are at least three, and the difference is mainly that the eccentric values of the axis of the shaft hole 321 and the center of the cover 31 are different, wherein the first is that the horizontal eccentric value of the axis of the shaft hole 321 and the center of the cover 31 is 0.26-0.30, and the vertical eccentric value is 2.20-2.24. The second has a lateral eccentricity of 1.05-1.09 and a longitudinal eccentricity of 0.91-0.95. The third one has a lateral eccentricity value of 2.21-2.25 and a longitudinal eccentricity value of 2.22-2.26.

As shown in fig. 1, the outer end of the output shaft 2 is provided with a gear portion 21, and the gear portion 21 is in meshed connection with the transmission gear 4. The transmission gear 4 comprises an upper transmission part 41 and a lower transmission part 42, the lower transmission part 42 is meshed with the gear part 21 of the output shaft 2, and the upper transmission part 41 is connected with parts in a mechanism connected with a motor. So that the motor main body 1 drives the output shaft 2 to rotate, the output shaft 2 drives the lower transmission part 42 to rotate, and the lower transmission part 42 drives the upper transmission part 41 to synchronously rotate, thereby realizing the movement of a mechanism connected with the upper transmission part 41. The number of teeth of the lower transmission part 42 is greater than that of the upper transmission part 41, and the radial dimension of the lower transmission part 42 is greater than that of the upper transmission part 41. Therefore, the rotation of the motor can be reduced in speed when being transmitted to the mechanism through the tooth number difference and the radial dimension difference between the upper transmission part 41 and the lower transmission part 42, and the normal driving of the mechanism is realized.

Further, referring to fig. 1 and 4, the center of the upper transmission portion 41 and the center of the lower transmission portion are also eccentrically disposed, and the eccentric value of the center of the shaft hole 321 and the center of the cover 31 is matched with the eccentric value of the center of the upper transmission portion 41 and the center of the lower transmission portion. Thereby realizing the enhancement of the acting force of the mechanism drive connected with the motor through the eccentrically arranged transmission gear 4 and the output shaft 2.

Further, the upper transmission part 41 and the lower transmission part 42 may be integrally formed, that is, they are directly attached together. A connecting post 43 may be provided between the upper and

lower transmission parts

41 and 42. In connection with fig. 1 and 4, in this embodiment, a connecting column 43 is preferably disposed between the upper transmission portion 41 and the lower transmission portion 42, the upper transmission portion 41 and the lower transmission portion 42 are connected by the connecting column 43, and the upper transmission portion 41, the lower transmission portion 42 and the connecting column 43 may be integrally formed or may be detachably connected. In this embodiment, it is further preferable that the upper transmission portion 41 and the lower transmission portion 42 are detachably disposed on the connecting post 43.

Specifically, in combination with fig. 1 and fig. 4, the upper end and the lower end of the connecting column 43 are respectively provided with a clamping groove 431, the upper side of the lower transmission portion 42 and the lower side of the upper transmission portion 41 are respectively provided with a clamping block 421 adapted to the clamping grooves 431, and the upper transmission portion 41 and the lower transmission portion 42 are detachably connected on the connecting column 43 through the arrangement of the clamping blocks 421 in the clamping grooves 431. The connection of the upper transmission part 41, the lower transmission part 42 and the connecting column 43 can be completed by a user through simple pulling and inserting, and the operation is simple and quick. Meanwhile, the change of the gear and motor transmission ratio can be realized by changing the number of teeth and the radial size through changing the upper transmission part 41 or the lower transmission part 42 with different specifications, and the change of the distance between the upper transmission part 41 and the lower transmission part 42 can be realized through changing the connecting column 43 with different lengths, so that the transmission gear 4 can be simply connected with different mechanism parts, and further, different use environments can be adapted to meet more use requirements.

In order to limit the axial movement of the upper transmission part 41 and the lower transmission part 42 on the connecting post 43, a limiting mechanism, such as a clip, or a design of limiting grooves and limiting blocks, may be added to the upper transmission part 41 and the lower transmission part 42, so as to ensure the stable rotation of the transmission gear 4.

Example 2:

the present embodiment is substantially the same as embodiment 1, as shown in fig. 5, and is different in that threaded holes 432 are formed at both the upper and lower ends of the connection post 43, a connection block 422 having external threads and adapted to the threaded holes 432 is disposed on the upper side of the lower transmission portion 42 and the lower side of the upper transmission portion 41, and the upper transmission portion 41 and the lower transmission portion 42 are detachably connected to the connection post 43 through threaded connection. Therefore, the connection of the upper transmission part 41, the lower transmission part 42 and the connecting column 43 can be simply realized through threaded connection, and the axial movement of the upper transmission part 41 and the lower transmission part 42 on the connecting column 43 can be effectively limited so as to prevent the upper transmission part 41 and the lower transmission part 42 from axially moving and separating from the connecting column 43. The direction of the screw thread in this embodiment is opposite to the rotation direction of the upper and

lower transmission parts

41 and 42, thereby preventing the upper and

lower transmission parts

41 and 42 from being separated from the connection post 43 when rotated.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. A transmission gear, comprising

A lower transmission part (42) for connection with an output shaft (2) of the motor;

an upper transmission section (41) provided on the upper side of the lower transmission section (42);

the number of teeth of the lower transmission part (42) is larger than that of teeth of the upper transmission part (41), and the radial dimension of the lower transmission part (42) is larger than that of the upper transmission part (41);

the axis of the upper transmission part (41) and the axis of the lower transmission moving part are eccentrically arranged.

2. The drive gear according to claim 1, wherein: a connecting column (43) is arranged between the upper transmission part (41) and the lower transmission part (42), the upper transmission part (41) is connected with the lower transmission part (42) through the connecting column (43), and the upper transmission part (41) and the lower transmission part (42) are detachably arranged on the connecting column (43).

3. The drive gear according to claim 2, characterized in that: the upper end and the lower end of the connecting column (43) are respectively provided with a clamping groove (431), the upper side of the lower transmission part (42) and the lower side of the upper transmission part (41) are respectively provided with a clamping block (421) matched with the clamping grooves (431), and the upper transmission part (41) and the lower transmission part (42) are detachably connected on the connecting column (43) through the arrangement of the clamping blocks (421) in the clamping grooves (431).

4. The drive gear according to claim 2, characterized in that: the upper end and the lower end of the connecting column (43) are respectively provided with a threaded hole (432), the upper side of the lower transmission part (42) and the lower side of the upper transmission part (41) are respectively provided with a connecting block (422) which is matched with the threaded holes (432) and provided with external threads, and the upper transmission part (41) and the lower transmission part (42) are detachably connected on the connecting column (43) through threaded connection.

5. The drive gear according to claim 1, wherein: the upper transmission part (41) and the lower transmission part (42) are integrally formed.

6. A motor, it includes motor main part (1) and sets up output shaft (2) on motor main part (1), motor main part (1) drive output shaft (2) rotate, its characterized in that:

a transmission gear (4) according to any one of claims 1-5, said transmission gear (4) being connected to the output shaft (2), the output shaft (2) driving the transmission gear (4) in rotation.

7. The motor of claim 6, wherein: still include motor end cover (3), it sets up on motor main part (1), motor end cover (3) include:

a cover body (31) with a lower end extending downwards to form a connecting part (311) for connecting the motor main body (1), wherein a mounting cavity (312) is formed in the connecting part (311);

a shaft penetrating portion (32) provided on the upper side of the cover body (31);

wherein, the shaft penetrating part (32) is provided with a shaft penetrating hole (321) penetrating through the shaft penetrating part (32), and the shaft penetrating hole (321) is communicated with the mounting cavity (312); the upper end of the motor main body (1) is at least partially arranged in the mounting cavity (312), and the output shaft (2) passes through the shaft penetrating hole (321) to extend to the upper side of the shaft penetrating part (32).

8. The electric machine of claim 7, wherein: the axle center of the axle hole (321) and the center of the cover body (31) are eccentrically arranged, and the eccentric value of the axle center of the axle hole (321) and the center of the cover body (31) is matched with the eccentric value between the axle center of the upper transmission part (41) and the axle center of the lower transmission moving part.

9. The electric machine of claim 7, wherein: the periphery of the connecting part (311) is provided with a threading hole (34), and the threading hole (34) is communicated with the mounting cavity (312) and the outer side of the cover body (31).

10. The electric machine of claim 9, wherein: a plurality of mounting columns (35) are arranged on the peripheral surface of the connecting part (311), one side of each mounting column (35) and the connecting part (311) are integrally formed, the other side of each mounting column extends outwards, and mounting holes (351) for mounting a motor are formed in each mounting column (35);

a reinforcing block (36) is arranged on the peripheral surface of the connecting portion (311), one end of the reinforcing block (36) is arranged on the peripheral side of the threading hole (34), and the other end of the reinforcing block extends to the mounting column (35).