CN212367058U

CN212367058U - Connection structure of series motor

Info

Publication number: CN212367058U
Application number: CN202020940636.5U
Authority: CN
Inventors: 徐鹏; 张国强; 陈栋; 刘福星
Original assignee: Hangzhou Zhonghao Electric Technology Co ltd
Current assignee: Hangzhou Zhonghao Electric Technology Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-01-15
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a connection structure of series connection motor, the electrical unit who includes a plurality of series connection, electrical unit includes casing and output shaft, and the relative one end of output shaft of adjacent electrical unit is equipped with the radial synchronizing structure of complex, and the casing opposite side of adjacent electrical unit is equipped with complex axial locking structure. The utility model is provided with a plurality of motor units, the number of the motor units connected in series on the output piece can be changed according to different use requirements, and the utility model is suitable for various use environments and requirements; a plurality of motor units can output together or output singly, and are switched into a single-motor mode or a double-motor mode or a multi-motor mode according to the load condition, so that the energy-saving and environment-friendly effects are achieved.

Description

Connection structure of series motor

Technical Field

The utility model relates to a modular design of axial magnetic flux motor especially relates to a connection structure of series connection motor.

Background

Due to the characteristics of the axial flux motor, when large output power and output torque are required, the radial size of the motor needs to be increased, so that the area of the disk surface of the motor is greatly increased. Increasing the radial dimension increases the installation area, reduces the structural strength, and increases the mold opening cost. The single motor solution has its limitations in scenarios where a high power disc motor is required.

For example, a "be convenient for installation and good connecting device of bi-motor" that discloses in chinese patent literature, its notice No. CN108365702A includes a bottom plate, bottom plate bottom one side be provided with a first motor, just first motor one side be provided with a second motor, first motor with the top of second motor all be located the bottom plate, just the top of bottom plate on be provided with a plurality of spliced pole, just the bottom plate on the top of the spliced pole of one side be located the bottom of a first connecting plate, the bottom plate on the top of the spliced pole of opposite side be located the bottom of second connecting plate, just first connecting plate on the symmetric connection have two springs, the top of spring be provided with a fixed plate. On the connecting device of the double motors, all parts are independent from each other, and in the using process, the parts are not directly connected with each other, so that the effect of increasing power cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art's single motor power less, and the great problem of limitation in the use, provide a connection structure of series connection motor, adopt the connection between the output shaft, the mode that realizes establishing ties around two or more motors is used on the output shaft, increases the drive power of motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a connection structure of series connection motor, includes the motor unit of a plurality of series connection, motor unit includes casing and output shaft, and the relative one end of output shaft of adjacent motor unit is equipped with the radial synchronous structure of complex, and the casing opposite side of adjacent motor unit is equipped with the axial locking structure of complex.

The connecting structure of the series motors comprises a plurality of motor units which are connected in series, wherein each motor unit comprises a shell and an output shaft, one end, opposite to the output shaft, of each adjacent motor unit is provided with a matched radial synchronous structure, and the opposite sides of the shells of the adjacent motor units are provided with axial locking structures. And the transmission effect between two adjacent motors is realized by utilizing an axial synchronous structure. The connection between two adjacent motors is realized by utilizing an axial locking structure. The driving power of the series motor is increased by adopting a plurality of motor units connected in series.

Preferably, the radial synchronisation structure comprises an internal or external spline on the output shaft, the internal and external splines being located at respective opposite ends of the output shaft of adjacent motor units. The output shaft is provided with an internal spline or an external spline, the internal spline and the external spline are respectively positioned at the opposite ends of the output shafts of the adjacent motor units, and in the installation process, the transmission effect between the two adjacent motor units is realized by the matching between the internal spline and the external spline on the two adjacent motor units.

Preferably, both sides of the shell are respectively provided with a concave spigot and a convex spigot which are matched in shape. In the installation process, the motor unit is pre-installed through the matching of the concave spigot and the convex spigot of the shape matching on the motor unit, the centering installation efficiency of the motor unit is improved, and the installation effect of the series motor and the accuracy in the installation process are improved.

Preferably, the male spigot and the female spigot are arranged coaxially with the output shaft, the male spigot is in a circular ring shape, and the female spigot is in a circular hole shape. The axial positions of the male spigot, the female spigot and the output shaft are the same, so that the output shafts on the two motor units are matched after the male spigot and the female spigot are matched in the installation process, and the motor units are quickly matched. Meanwhile, the male spigot is in a ring shape, the female spigot is in a circular hole shape, and the male spigot and the female spigot are matched by utilizing the matching of the circular ring shape and the circular hole shape.

Preferably, the axial locking structure includes mounting flanges respectively located at the side surfaces of the housing, and the mounting flanges at the opposite sides of the adjacent motor units are connected by locking bolts. Mounting flanges are arranged on two sides of the shell, and connecting holes are formed in the mounting flanges of the shell. The mounting flange and the connecting hole are utilized to realize the fixed connection between the two shells.

Preferably, the number of the motor units is two, one end of the output shaft of one of the motor units is provided with an internal spline, one end of the output shaft of the other motor unit is provided with an external spline, the internal spline and the external spline are in splicing fit, and two sides of the shell are provided with positioning pin holes. The motor is provided with two motor units, wherein one end of an output shaft of one motor unit is provided with an internal spline, the output shaft of the other motor unit is provided with an external spline, and the internal spline is in splicing fit with the external spline, so that the transmission effect between the two motor units is realized. A positioning shaft pin hole is formed in the shell, and positioning and installation between the two motor units are realized by utilizing the positioning shaft pin hole; the two motor units can output power simultaneously or independently, and are switched into a single motor mode or a double motor mode according to the load condition, so that the energy-saving and environment-friendly effects are achieved.

Preferably, the opposite ends of the two output shafts are provided with cooperating locating holes. The locating hole sets up parallel output shaft axis, and the locating hole is the pinhole, and inside can insert the locating pin, makes things convenient for the phase angle location of two output shafts.

Preferably, a rotor is arranged in the shell and fixedly connected with the output shaft. The rotor in the motor is fixedly connected with the output shaft, the rotor rotates in the motor, the rotation of the rotor drives the rotation of the output shaft, and the kinetic energy of the motor is transmitted out.

Preferably, the output shaft is provided with a mounting ring for connecting the rotor. The output shaft is provided with a mounting ring for connecting the rotor, and the motor is connected with the output shaft by the mounting ring. The mounting ring is connected with a motor, and the motor can drive an output shaft to rotate.

Therefore, the utility model discloses following beneficial effect has: (1) the motor units are arranged, the number of the motor units connected in series on the output part can be changed according to different use requirements, and the motor unit is suitable for various use environments and requirements; (2) the radial synchronous structure comprises an inner spline and an outer spline, and transmission between two or more motor units is realized by matching the inner spline with the outer spline.

Drawings

Fig. 1 is a cross-sectional view of a series motor of the present invention.

Fig. 2 is a sectional view of an output shaft of the left motor unit in fig. 1.

Fig. 3 is a sectional view of an output shaft of the right motor unit in fig. 1.

Fig. 4 is a sectional view of the output shaft-fitted rotor of the left motor unit in fig. 1.

Fig. 5 is a side view of the series motor of the present invention.

In the figure: 1. the output member 2, the motor unit 3, the housing 31, the rotor 32, the axial locking structure 321, the mounting flange 322, the connecting hole 33, the positioning pin hole 34, the male spigot 35, the female spigot 4, the output shaft 4', the first output shaft 4 ″, the second output shaft 41, the radial synchronizing structure 42, the external spline 43, the internal spline 44, the mounting ring 45 and the positioning hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Example 1:

in the exemplary embodiment shown in fig. 1 to 5, a tandem housing comprises an output 1, wherein the output 1 is composed of several motor units 2. Each motor unit 2 comprises a housing 3 and an output shaft 4, the output shaft 4 being fixed to the housing 3, and the energy in the housing 3 being transferable out by means of the output shaft 4. A radial synchronization structure 41 is provided on the output shaft 4 of the adjacent electric machine unit 2, wherein the radial synchronization structure 41 comprises an external spline 42 and an internal spline 43. In the installation process, the output shafts 4 of two adjacent motor units 2 are respectively provided with an external spline 42 and an internal spline 43, and the transmission connection between the two output shafts 4 is realized by the matching of the external spline 42 and the internal spline 43.

The shell 3 is provided with a concave spigot 35 and a convex spigot 34, the concave spigot 35 and the convex spigot 34 are respectively arranged at two sides of the shell 3, and the concave spigot 35 is matched with the convex spigot 34 in shape. In the installation process, the concave spigot 35 is matched with the convex spigot 34, so that the installation between two adjacent motors is realized, and the centering installation efficiency between the motor units 2 is improved. Meanwhile, the concave spigot 35 is a circular hole type, the convex spigot 34 is a circular ring type, and the concave spigot 35, the convex spigot 34 and the output shaft 4 are arranged coaxially.

In fig. 1, the output shafts of two adjacent motor units 2 are respectively provided with a radial synchronizing structure 41 in a matching manner, the right end of the output shaft of the left motor unit 2 is provided with an internal spline 43, the left end of the output shaft of the right motor unit 2 is provided with an external spline 42, and the internal spline 43 and the external spline 42 are in a splicing fit to realize the connection between the two adjacent motor units 2. The left end of the output shaft of the left motor unit 2 can be flexibly designed as required, for example, it can be designed as an external spline for connecting another motor unit.

The output shaft 4 is further provided with a mounting ring 44, and the mounting ring 44 is provided with a through hole by which the rotor 31 of the housing 3 can be connected. The rotor 31 rotates in the housing 3, which drives the output shaft 4 to rotate, so as to convert the electric energy into kinetic energy and transmit the kinetic energy out of the housing 3. The rotor 31 is arranged inside the housing 3, and in the process of mounting the housing 3 and the output shaft 4, the rotor 31 is arranged on the right side of the mounting ring 44, and meanwhile, the rotor 31 and the mounting ring 44 are connected through a fixing piece.

The output member 1 comprises a first motor unit and a second motor unit which are arranged in series from left to right, the first motor unit and the second motor unit are identical in structure, and the second motor unit is connected in series on the first motor unit. All be provided with output shaft 4 in first motor unit and the second motor unit, and the second output that locates first motor unit is inserted to the first output on the second motor unit, realizes the transmission connection between two casings 3. The shell 3 is provided with a positioning pin hole 33, and the positioning pin hole 33 is correspondingly arranged on two sides of the shell 3. As shown in fig. 5, two symmetrical pin bolts are arranged in the positioning pin holes 33 to transmit torque between the shells and perform circumferential positioning. In the installation process, the shell 3 on the first motor unit is contacted with the shell 3 on the second motor unit, and the two shells 3 are connected by using the positioning pin holes 33 and the positioning bolts, so that the positioning connection between the two shells 3 is realized. The housing 3 is further provided with an installation flange 321, the installation flange 321 is provided with connecting holes 322, the positions of the connecting holes 322 on the two sides of the housing 3 correspond to each other, and in the installation process, the two housings 3 are connected through the connecting holes 322 on the two housings 3. The mounting flanges 321 on the opposite sides of the first motor unit and the second motor unit are connected through locking bolts. The connecting holes 322 on the two sides of the shell 3 correspond to the positioning pin holes 33, so that when the two shells 3 are connected side by side, the positioning pin holes 33 on the two shells 3 correspond to the connecting holes 322, and the shell 3 are more accurately connected. The opposite ends of the two output shafts corresponding to the first motor housing and the second motor housing are provided with matching positioning holes 45. The locating hole 45 is arranged in parallel with the axis of the output shaft, the locating hole is a pin hole, and a locating pin can be inserted into the locating hole, so that the two output shafts can be conveniently located at a phase angle.

The first motor unit is provided with a first output shaft 4 'and the second motor unit is provided with a second output shaft 4 ″, wherein the right side of the first output shaft 4' is provided with an internal spline 43, and wherein the internal spline 43 is provided on the right side of the external spline 42. The second output shaft 4 ″ is provided with an external spline 42, and the external spline 42 is arranged on the left side of the housing 3, and the first motor unit and the second motor unit are connected by matching the internal spline 43 and the external spline 42 on the first output shaft 4' and the second output shaft 4 ″. The two motor units can output power simultaneously or independently, and are switched into a single motor mode or a double motor mode according to the load condition, so that the energy-saving and environment-friendly effects are achieved.

In the installation process, a plurality of motor units 2 can be connected in series on the output part 1 by utilizing the matching between the output shaft 4 and the matching between the shell 3 and the shell 3, and the axial superposition of the plurality of shells 3 can expand the power so as to achieve the effect of driving the shell 3 at high power. Meanwhile, the power is increased through axial superposition, the radial diameter size of the shell 3 is not increased, the installation area of the shell 3 can be reduced, the die sinking cost is saved, and the like. Meanwhile, the number of the shells 3 connected in series can be increased or reduced on occasions where the shells are not used and under different use requirements, so that the device is suitable for various occasions and various requirements. The same motor unit 2 is adopted, so that the mold opening cost of the shell 3 and the output shaft 4 can be reduced, and the requirements of different power output parts 1 can be met by adopting the same group of molds.

Example 2:

the technical solution in embodiment 2 is substantially the same as that in embodiment 1, except that the radial synchronizing structure 41 includes a flat key and a key groove, which are respectively disposed at opposite ends of the output shafts 4 of the adjacent motor units 2, and the transmission between two adjacent output shafts 4 is realized by cooperation between the flat key and the key groove.

Claims

1. The connecting structure of the series motors is characterized by comprising a plurality of motor units (2) which are connected in series, wherein each motor unit (2) comprises a shell (3) and an output shaft (4), the opposite ends of the output shafts of the adjacent motor units (2) are provided with matched radial synchronous structures (41), and the opposite sides of the shells (3) of the adjacent motor units (2) are provided with matched axial locking structures (32).

2. A connection structure of series connected electric motors according to claim 1, wherein said radial synchronizing structure (41) comprises an internal spline (43) or an external spline (42) on the output shaft, the internal spline (43) and the external spline (42) being located at opposite ends of the output shaft (4) of the adjacent motor unit (2), respectively.

3. A connection arrangement for series connected electric motors according to claim 1 or 2, characterised in that the housing (3) is provided with form-fitting female (35) and male (34) stops on both sides.

4. A connecting structure of series motors according to claim 3, wherein the male spigot (34), the female spigot (35) and the output shaft (4) are coaxially arranged; the male spigot (34) is circular ring-shaped, and the female spigot (35) is circular hole-shaped.

5. A connection structure of series connected electric motors according to claim 1, wherein said axial locking structure (32) comprises mounting flanges (321) respectively located at the side surfaces of the housing (3), the mounting flanges (321) of the opposite sides of the adjacent motor units (2) being connected by locking bolts.

6. The connection structure of the series motor according to claim 1, 2 or 5, wherein the number of the motor units (2) is two, one end of the output shaft of one motor unit (2) is provided with an internal spline (43), one end of the output shaft of the other motor unit is provided with an external spline (42), the internal spline (43) and the external spline (42) are in inserted fit, and both sides of the shell (3) are provided with positioning pin holes (33).

7. A connecting structure of series connected electric motors as claimed in claim 6, wherein the opposite ends of the two output shafts are provided with matching positioning holes.

8. A connection structure of series connected electric motors according to claim 1, wherein a rotor (31) is provided in said housing (3), said rotor (31) being fixedly connected to the output shaft (4).

9. A connection structure of series motors according to claim 1, wherein a mounting ring (44) for connecting the rotor (31) is provided on the output shaft (4).