阅读说明：本技术 轨道交通永磁同步牵引电机转子磁钢装配装置及方法 (Device and method for assembling magnetic steel of rotor of permanent magnet synchronous traction motor in rail transit ) 是由 田奎森 雷军 刘刚 谭林 尹琨 彭玲 廖力康 陈江秀 于宏伟 高继和 殷茜 于 2019-03-27 设计创作，主要内容包括：本发明公开了一种轨道交通永磁同步牵引电机转子磁钢装配装置,包括转轴定位组件、升降导板、升降推板、第一移动平台以及第二移动平台,转轴定位组件或升降导板设于第一移动平台上,升降导板上设有第一转轴定位孔以及多个与铁心槽一一对应布置的装配导槽,升降推板设于第二移动平台上,升降推板上设有第二转轴定位孔以及多个与铁心槽一一对应布置的推杆。本发明进一步公开了其装配方法,包括步骤：S1、铁心粗定位；S2、升降导板粗定位；S3、铁心精定位；S4、磁钢装配前准备；S5、磁钢装配；S6、重复执行步骤S5直至完成各层磁钢的装配。本发明具有结构简单、成本低、效率较高、定位精度较高等优点。(The invention discloses a magnetic steel assembling device for a rotor of a permanent magnet synchronous traction motor of rail transit, which comprises a rotating shaft positioning component, a lifting guide plate, a lifting push plate, a first moving platform and a second moving platform, wherein the rotating shaft positioning component or the lifting guide plate is arranged on the first moving platform, the lifting guide plate is provided with a first rotating shaft positioning hole and a plurality of assembling guide grooves which are arranged in a one-to-one correspondence manner with iron core grooves, the lifting push plate is arranged on the second moving platform, and the lifting push plate is provided with a second rotating shaft positioning hole and a plurality of push rods which are arranged in a one-to-one. The invention further discloses an assembly method thereof, which comprises the following steps: s1, carrying out rough positioning on the iron core; s2, roughly positioning a lifting guide plate; s3, fine positioning of the iron core; s4, preparing before magnetic steel assembly; s5, assembling magnetic steel; and S6, repeating the step S5 until the magnetic steel of each layer is assembled. The invention has the advantages of simple structure, low cost, higher efficiency, higher positioning precision and the like.)

1. The utility model provides a synchronous traction motor rotor magnet steel assembly quality of track traffic permanent magnetism which characterized in that: including pivot locating component (1), lift baffle (2), lift push pedal (3), first moving platform (4) and second moving platform (6), pivot locating component (1) or lift baffle (2) are located on first moving platform (4), be equipped with first pivot locating hole (21) and assembly guide slot (22) that a plurality of and iron core groove (102) one-to-one were arranged on lift baffle (2), on second moving platform (6) were located in lift push pedal (3), be equipped with second pivot locating hole (31) and a plurality of push rod (32) of arranging with iron core groove (102) one-to-one on lift push pedal (3).

2. The assembly device for magnetic steel of the rotor of the rail transit permanent magnet synchronous traction motor according to claim 1, characterized in that: the lifting guide plate (2) is arranged on the first moving platform (4).

3. The assembly device for magnetic steel of the rotor of the rail transit permanent magnet synchronous traction motor according to claim 2, characterized in that: the rotating shaft positioning assembly (1) comprises a positioning flange (11), a flange (12) is arranged at the lower end of the positioning flange (11), and a positioning key (13) is arranged on the flange (12).

4. The device for assembling magnetic steel of a rotor of a rail transit permanent magnet synchronous traction motor according to claim 3, characterized in that: the first moving platform (4) and the second moving platform (6) can move above the flange (12), and the positioning flange (11) is provided with a jacking mechanism (5).

5. The device for assembling magnetic steel of the rotor of the rail transit permanent magnet synchronous traction motor according to claim 1 or 2, is characterized in that: the rotating shaft positioning assembly (1) comprises a chuck (14).

6. The device for assembling magnetic steel of a rotor of a rail transit permanent magnet synchronous traction motor according to any one of claims 1 to 4, wherein: the rotating shaft positioning component (1) is a deflectable structure.

7. The device for assembling magnetic steel of a rotor of a rail transit permanent magnet synchronous traction motor according to any one of claims 1 to 4, wherein: the first moving platform (4) and the second moving platform (6) are both linear moving platforms and are arranged oppositely or vertically.

8. An assembling method of a magnetic steel assembling device of a rotor of a rail transit permanent magnet synchronous traction motor according to any one of claims 1 to 7, characterized by comprising the following steps: the method comprises the following steps:

s1, rough positioning of iron core (101): one end of the rotating shaft (100) close to the end plate (103) is connected with the rotating shaft positioning component (1);

s2, coarse positioning of the lifting guide plate (2): the first moving platform (4) drives the lifting guide plate (2) or the rotating shaft positioning assembly (1) to move, so that the first rotating shaft positioning hole (21) is aligned with the rotating shaft (100), the assembling guide grooves (22) are aligned with the iron core grooves (102) one by one, and then the lifting guide plate (2) descends;

s3, fine positioning of the iron core (101): the second moving platform (6) drives the lifting push plate (3) to move, so that the second rotating shaft positioning hole (31) is aligned with the rotating shaft (100), the push rods (32) are aligned with the assembling guide grooves (22) one by one, then the lifting push plate (3) drives the push rods (32) to descend, and the push rods (32) penetrate through the assembling guide grooves (22) and extend into the iron core grooves (102);

s4, preparing before assembling the magnetic steel (104): the lifting push plate (3) rises to separate the push rod (32) from the rotating shaft (100), and then the second moving platform (6) drives the lifting push plate (3) to move away;

s5, assembling magnetic steel (104): the magnetic steel (104) is taken out of each assembly guide groove (22), the second moving platform (6) drives the lifting push plate (3) to move to the position above the rotating shaft (100), then the lifting push plate (3) descends to push each magnetic steel (104) into the iron core groove (102), finally the lifting push plate (3) ascends to separate the push rod (32) from the rotating shaft (100), and then the second moving platform (6) drives the lifting push plate (3) to move away;

and S6, repeating the step S5 until the assembly of each layer of magnetic steel (104) is completed.

9. The assembling method of the magnetic steel assembling device of the rotor of the rail transit permanent magnet synchronous traction motor according to claim 8, wherein the assembling method comprises the following steps: in step S4, the lifting guide plate (2) further descends to be closely attached to the end of the iron core (101) far away from the end plate (103), and the lifting mechanism (5) lifts the rotating shaft positioning assembly (1) upwards.

10. The assembling method of the magnetic steel assembling device of the rotor of the rail transit permanent magnet synchronous traction motor according to claim 8, wherein the assembling method comprises the following steps: in step S5, the magnetic steel (104) is grasped by the manipulator and transferred into the assembly guide groove (22).

Technical Field

The invention relates to an assembly technology of a permanent magnet synchronous traction motor for rail transit, in particular to a device and a method for assembling magnetic steel of a rotor of the permanent magnet synchronous traction motor for rail transit.

Background

The rail transit permanent magnet synchronous traction motor meets the current situation requirements of environmental protection and energy conservation, the application prospect is more and more clear, and the application is expected to be more and more popularized, so the requirement of industrial production of rail transit permanent magnet synchronous traction motor manufacturing is urgent, the automation of magnetic steel assembly in permanent magnet rotor manufacturing is one of key process technologies, and the development of magnetic steel assembly equipment suitable for the rail transit permanent magnet synchronous traction motor becomes the urgent need of technicians in the field.

The structure of the rotor core without the magnetic steel is shown in the attached drawing 1, and the permanent magnet rotor formed after the rotor core is assembled with the magnetic steel is shown in the attached drawings 2 and 3. The magnet steel material is neodymium iron boron and samarium cobalt generally, and if the magnet steel is samarium cobalt material, has certain compressive strength, but can not bear the impact force. Because the magnet steel is generally in a magnetizing state before being assembled, certain magnetic attraction force exists between the magnet steel and the magnetic conductive material in contact with the magnet steel during the assembling process, the influence of the magnetic attraction force needs to be overcome, and the magnet steel is ensured not to be damaged. The magnetic steel and the iron core slot (or called magnetic steel assembling slot) are in clearance fit, the magnetic steel has polarity distribution in the iron core, two slots form one group to form one magnetic pole, the magnetic poles N, S are distributed around the rotating shaft at intervals, and the initial position of each motor magnetic pole is the same.

The rotor core structure of the conventional permanent magnet motor is greatly different from the permanent magnet rotor of the rail transit permanent magnet synchronous traction motor, the assembly process flow is also greatly different, the rotor core of the conventional permanent magnet motor is divided into multiple sections, the rotor is assembled with a rotating shaft after single-section assembly magnetic steel is packaged to form the rotor, the volume and the weight of the rotor of the rail transit permanent magnet synchronous traction motor are large, the structure that the whole iron core is provided with the rotating shaft is generally adopted before the rotor magnetic steel is assembled, one end of an iron core groove is shielded by an end plate, and the iron core at the assembly end is in a free state and has a spring-. The main differences between the single-section iron core assembly magnetic steel and the rotor iron core assembly magnetic steel with the shaft are as follows: the iron cores are positioned differently, the single-section rotor iron core is centered by the shaft hole and is oriented by the iron core slot, while the rotor with the shaft is centered by the shaft, and the orientation by the iron core slot is difficult and needs to convert the positioning reference for many times; the layers of the magnetic steel are different: the number of layers of the magnetic steel to be assembled on the single-section rotor core is 1-3, the magnetic steel can be assembled in place after one-time assembly, the magnetic steel is assembled on the rotor with the shaft by a plurality of layers of reciprocating assembly and press mounting, and the press mounting stroke is large and variable; the iron cores have different weights: the single-section rotor core has small mass, the upper station and the lower station are convenient, the rotor core with the shaft has large mass, and the upper station and the lower station are difficult. Due to the differences in the aspects, the magnetic steel assembling equipment of the conventional permanent magnet motor cannot be applied to the assembling process of the permanent magnet rotor of the rail transit permanent magnet synchronous traction motor, the magnetic steel is generally assembled by a guide die manually at present, the guide die is fixed after being aligned with the rotor core slot, the magnetic steel is assembled by manually dividing the slot to ensure that the magnetic steel assembling polarity is correct, but the phenomenon of samarium-cobalt magnetic steel breakage is easy to occur, and the assembling efficiency is low; if the magnetic steel is manually assembled by adopting a same-layer assembly method, the problem that the samarium-cobalt magnetic steel is damaged can be solved, but the assembly polarity is easy to make mistakes.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the magnetic steel assembling device for the rotor of the permanent magnet synchronous traction motor of the rail transit, which has the advantages of simple structure, low cost, higher efficiency and higher positioning precision.

The invention further provides an assembling method of the magnetic steel assembling device for the rotor of the permanent magnet synchronous traction motor in the rail transit.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a synchronous traction motor rotor magnet steel assembly quality of track traffic permanent magnetism, includes pivot locating component, lift baffle, lift push pedal, first moving platform and second moving platform, pivot locating component or the lift baffle is located on the first moving platform, be equipped with first pivot locating hole and a plurality of assembly guide slot of arranging with the groove one-to-one of unshakable in one's determination of iron on the lift baffle, on the second moving platform was located to the lift push pedal, be equipped with second pivot locating hole and a plurality of push rod of arranging with the groove one-to-one of unshakable in one's determination of iron on the lift push pedal.

As a further improvement of the above technical solution: the lifting guide plate is arranged on the first moving platform.

As a further improvement of the above technical solution: the rotating shaft positioning assembly comprises a positioning flange, a flange is arranged at the lower end of the positioning flange, and a positioning key is arranged on the flange.

As a further improvement of the above technical solution: the first moving platform and the second moving platform can move to the position above the flange, and the positioning flange is provided with a jacking mechanism.

As a further improvement of the above technical solution: the rotating shaft positioning assembly comprises a chuck.

As a further improvement of the above technical solution: the rotating shaft positioning component is a deflectable structure.

As a further improvement of the above technical solution: the first moving platform and the second moving platform are both linear moving platforms and are arranged oppositely or vertically.

An assembling method of the magnetic steel assembling device for the rotor of the permanent magnet synchronous traction motor in rail transit comprises the following steps:

s1, positioning the iron core coarsely: connecting one end of the rotating shaft close to the end plate with a rotating shaft positioning component;

s2, coarse positioning of the lifting guide plate: the first moving platform drives the lifting guide plate or the rotating shaft positioning assembly to move, so that the first rotating shaft positioning hole is aligned with the rotating shaft, the assembling guide grooves are aligned with the iron core grooves one by one, and then the lifting guide plate descends;

s3, fine positioning of the iron core: the second moving platform drives the lifting push plate to move, so that the second rotating shaft positioning hole is aligned with the rotating shaft, the push rods are aligned with the assembling guide grooves one by one, then the lifting push plate drives the push rods to descend, and the push rods penetrate through the assembling guide grooves and extend into the iron core grooves;

s4, preparing before magnetic steel assembly: the lifting push plate rises to separate the push rod from the rotating shaft, and then the second moving platform drives the lifting push plate to move away;

s5, assembling magnetic steel: the magnetic steel is taken into each assembly guide groove, the second moving platform drives the lifting push plate to move to the position above the rotating shaft, then the lifting push plate descends to push each magnetic steel into the iron core groove, finally the lifting push plate ascends to separate the push rod from the rotating shaft, and then the second moving platform drives the lifting push plate to move away;

and S6, repeating the step S5 until the magnetic steel of each layer is assembled.

As a further improvement of the above technical solution: in step S4, the lifting guide plate further descends to closely contact with the end of the iron core far from the end plate, and the lifting mechanism lifts the shaft positioning assembly upwards.

As a further improvement of the above technical solution: in step S5, the magnetic steel is grasped by the manipulator and transferred into the assembly guide groove.

Compared with the prior art, the invention has the advantages that: the invention discloses a magnetic steel assembling device for a rotor of a permanent magnet synchronous traction motor of rail transit, which utilizes a rotating shaft positioning component to perform coarse positioning on an iron core of a rotor with the shaft, and a push rod and an iron core groove can be designed to be matched accurately, so that the iron core groove can be aligned with an assembling guide groove accurately when the push rod is pressed into the iron core, namely a lifting guide plate and a lifting push plate with the push rod are combined to be matched with the iron core groove to perform accurate positioning; the magnetic steel is not directly inserted into the iron core during the assembly of the magnetic steel, but the magnetic steel is pressed into the iron core after passing through the lifting guide plate, so that the damage to the magnetic steel can be avoided, and meanwhile, an assembly guide groove on the lifting guide plate can also be used as a position coordinate of the magnetic steel conveyed by a manipulator; after the magnetic steel is arranged in the lifting guide plate, the magnetic steel cannot enter the rotor core necessarily, an external force is needed to push the core slot, and the push rod can ensure that the magnetic steel is pushed in place; after the positioning is completed, the circular assembly can be realized through the lifting motion of the lifting push plate and the translation of the second moving platform, the rotor core with large volume and large weight can be kept different, the requirement on corresponding driving is low, the repeated positioning precision in the assembly process can be ensured, the rotor with the rotating shaft length in a certain range can be compatible, and the compatibility of the equipment is good.

The invention discloses an assembling method of a rotor magnetic steel assembling device of a permanent magnet synchronous traction motor for rail transit, which comprises the steps of performing coarse positioning on a rotor core with a belt shaft before assembling, aligning a lifting guide plate with the rotor core and descending to a position close to the core, and finally utilizing a push rod to sequentially extend into an assembling guide groove and a core groove, so that the rotor core can be accurately positioned.

Drawings

Fig. 1 is a schematic structural diagram of a rail transit permanent magnet synchronous traction motor rotor when magnetic steel is not assembled.

Fig. 2 is a schematic structural diagram of a rail transit permanent magnet synchronous traction motor rotor after magnetic steel is assembled.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic top view structure diagram of a first rail transit permanent magnet synchronous traction motor rotor magnetic steel assembly device according to an embodiment of the present invention.

Fig. 5 is a schematic front view structure diagram of a first embodiment of a magnetic steel assembly device for a rotor of a permanent magnet synchronous traction motor in rail transit according to the present invention.

Fig. 6 is a partially enlarged view of fig. 5.

FIG. 7 is a schematic structural diagram of the rotor magnetic steel assembly device of the permanent magnet synchronous traction motor for rail transit, which is used for precise positioning.

FIG. 8 is a schematic structural diagram of the rotor magnetic steel assembling device of the permanent magnet synchronous traction motor for rail transit, which is disclosed by the invention.

Fig. 9 is a schematic front view structure diagram of a second embodiment of the magnetic steel assembly device for the rotor of the permanent magnet synchronous traction motor in rail transit according to the present invention.

Fig. 10 is a schematic top view structure diagram of a second embodiment of the magnetic steel assembly device for the rotor of the permanent magnet synchronous traction motor in rail transit according to the present invention.

Fig. 11 is a schematic structural diagram of a second embodiment of the rotating shaft positioning assembly in the present invention.

FIG. 12 is a flow chart of the method for assembling magnetic steel of a rotor of a permanent magnet synchronous traction motor for rail transit according to the present invention.

The reference numerals in the figures denote: 100. a rotating shaft; 101. an iron core; 102. an iron core slot; 103. an end plate; 104. magnetic steel; 1. a rotating shaft positioning component; 11. positioning the flange; 12. a flange; 13. a positioning key; 14. a chuck; 2. a lifting guide plate; 21. a first rotating shaft positioning hole; 22. assembling a guide groove; 3. lifting the push plate; 31. a second rotating shaft positioning hole; 32. a push rod; 4. a first mobile platform; 5. a jacking mechanism; 6. a second mobile platform.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.