CN212305051U

CN212305051U - Assembly fixture of axial magnetic field motor

Info

Publication number: CN212305051U
Application number: CN202020990865.8U
Authority: CN
Inventors: 刘行
Original assignee: Shanghai Weihui Electric Co ltd
Current assignee: Shanghai Weihui Electric Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-01-05
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses an axial magnetic field motor's assembly fixture, including inlayer work piece, intermediate level work piece, outer work piece and switching work piece, the intermediate level work piece is arranged in the periphery of inlayer work piece, and the periphery of intermediate level work piece is arranged in to outer work piece, has first external screw thread on the inlayer work piece, has first internal thread and second external screw thread on the intermediate level work piece, has the second internal thread on the outer work piece, and the spiral opposite direction of first internal thread and second external screw thread on the intermediate level work piece, first internal thread is coaxial with the second external screw thread on the intermediate level work piece. The two rotors of the axial magnetic field motor can be synchronously installed from two sides through the integral structural design, and the installation and production efficiency is high; the device can be reused, assembled and disassembled; small volume and convenient use.

Description

Assembly fixture of axial magnetic field motor

Technical Field

The utility model relates to a mechanical assembly fixture technical field specifically is an axial magnetic field motor's assembly fixture.

Background

The motor is a device for converting between the motor and mechanical energy, and is widely applied to civil and industrial aspects. The motors in wide use today are radial field motors, whose effective field direction is radial and works by the interaction of radial magnetic fields. However, in recent years, axial magnetic field motors, especially permanent magnet axial motors, have been developed rapidly, and have been applied more and more widely due to their characteristics of small size, light weight and high efficiency.

The axial magnetic field motor is different from a common motor, the air gap magnetic flux direction in the motor is axial, a current-carrying conductor is placed in the radial direction, a stator and a rotor core are of a disc type structure, and the motor is also called as a disc type motor. The axial magnetic field motor is characterized in that the magnetic tension between the inner stator and the rotor is very large, a sandwich structure is often adopted, namely, a rotor is arranged between the two stators, the motor is called as a double-stator single-rotor permanent magnet axial magnetic field motor, or a stator is arranged between the two rotors, the motor is called as a single-stator double-rotor permanent magnet axial magnetic field motor, the motor is equivalent to the motor with two motors integrated inside, the axial magnetic tensions of the left motor and the right motor are mutually offset, and the magnetic force in the motor is very small after the motor is assembled.

Although the permanent magnet axial motor has many advantages and wide application prospect, the permanent magnet axial magnetic field motor, especially the double-stator single-rotor permanent magnet axial magnetic field motor, has more complex process and great production and assembly difficulty. At present, the production and assembly of the motor mainly depend on hoisting, and the two rotors are separately assembled, namely, one permanent magnet rotor is assembled first, and then the other permanent magnet rotor is assembled. Because the stator and the rotor of the permanent magnet axial magnetic field motor have large axial magnetic pull force, the current assembly mode is easy to attract the stator and the rotor, and the assembly personnel are easy to be injured and very dangerous. In addition, the permanent magnet rotor which is installed in advance has large axial force, great damage is caused to the bearing, and assembly errors are easily caused. In addition, the current assembly mode has low assembly efficiency and is not easy to realize disassembly operation.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides an axial magnetic field motor's assembly fixture.

The technical scheme of the utility model is realized like this:

the utility model provides an axial magnetic field motor's assembly fixture which characterized in that: the device comprises an inner layer workpiece, an intermediate layer workpiece, an outer layer workpiece and a switching workpiece;

the middle layer workpiece is arranged on the periphery of the inner layer workpiece; the outer layer workpiece is arranged on the periphery of the middle layer workpiece;

the inner layer workpiece is provided with a first external thread; the middle layer workpiece is provided with a first internal thread and a second external thread; the outer layer workpiece is provided with a second internal thread;

the first external threads on the inner layer workpiece and the first internal threads on the middle layer workpiece are matched and meshed with each other to form a pair of thread groups; the second external threads on the middle layer workpiece are matched and meshed with the second internal threads on the outer layer workpiece to form a pair of thread groups;

the first internal thread and the second external thread on the middle layer workpiece are opposite in spiral direction; the first internal thread and the second external thread on the middle layer workpiece spirally rotate around the axis of the same spiral shaft.

The utility model discloses further set up to: the first internal thread and the second external thread on the middle layer workpiece have the same pitch.

The utility model discloses further set up to: the inner layer workpiece is provided with a guide key, the outer layer workpiece is provided with a guide groove along the axial direction of the spiral shaft, the guide key and the guide groove are matched with each other, and the guide key slides along the guide groove.

The utility model discloses further set up to: the intermediate layer workpiece rotates around the spiral shaft.

The utility model discloses further set up to: the inner layer workpiece is fixed.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the assembly tool of the axial magnetic field motor in the utility model ensures that the axial magnetic field motor is pushed by threads in the whole motor assembly process; because the thread bears large force and has the self-locking function, the thread is safe and reliable, the process is controllable, and the thread can be stopped at any time.

(2) The utility model provides an assembly fixture of axial magnetic field motor can guarantee that two rotors of axial magnetic field motor install simultaneously in step from the both sides for the combined axial force that the stator part bore in the installation is close to zero, has both protected parts such as stator part and bearing like this, also can guarantee to have less assembly deviation.

(3) The assembly tool of the axial magnetic field motor has high installation and production efficiency; the device can be reused, assembled and disassembled; small volume, convenient use and being suitable for various assembling and producing modes such as manual, semi-automatic, full-automatic and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 these drawings without inventive exercise.

Fig. 1 is a schematic view of the split of the present invention;

FIG. 2 is an assembled view of the present invention;

FIG. 3 is a schematic view of the assembly process of the present invention;

FIG. 4 is a schematic structural diagram of the main body of the axial magnetic field motor of the present invention;

FIG. 5 is a schematic view of the assembly process of the main structure of the axial magnetic field motor of the present invention;

fig. 6 is a schematic structural view of the connection between the inner layer workpiece and the first rotor assembly of the axial field motor according to the present invention;

fig. 7 is a schematic structural view of the connection between the middle layer workpiece and the axial magnetic field motor stator assembly according to the present invention;

FIG. 8 is a schematic structural view of the connection between the outer layer workpiece and the second rotor assembly of the axial field motor according to the present invention;

fig. 9 is a schematic view of the connection between the whole body of the present invention and the main structure of the axial magnetic field motor;

fig. 10 is a schematic view of the whole body of the present invention cooperating with the main structure of the axial magnetic field motor;

reference numerals: 1. an inner layer workpiece; 11. a guide key; 101. a first external thread; 2. an intermediate layer workpiece; 21. transferring the workpiece; 200. a screw shaft; 201. a first internal thread; 202. a second external thread; 3. an outer layer workpiece; 31. a guide groove; 302. a second internal thread; 4. a first rotor assembly; 5. a second rotor assembly; 6. a stator assembly; 7. a motor shaft; 8. a lower end cover; 9. a motor housing; 10. and (4) an upper end cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention is described below with reference to fig. 1-10:

as shown in fig. 1 to 3, an assembly tool for an axial magnetic field motor comprises an inner layer workpiece 1, an intermediate layer workpiece 2 and an outer layer workpiece 3; the middle layer workpiece 2 is arranged at the periphery of the inner layer workpiece 1; the outer layer workpiece 3 is arranged on the periphery of the middle layer workpiece 2;

the inner layer workpiece 1 is provided with a first external thread 101; the middle layer workpiece 2 is provided with a first internal thread 201 and a second external thread 202; the outer layer workpiece 3 is provided with a second internal thread 302; the first external thread 101 and the first internal thread 201 are mutually matched and meshed to form a pair of thread groups; the second internal thread 302 and the second external thread 201 are mutually matched and meshed to form a pair of thread groups, and the total number is two.

The first internal thread 201 and the second external thread 202 on the intermediate layer workpiece 2 are coaxial, i.e. are screwed around the same axis of the screw axis 200. Since the pair of threads engaged with each other are coaxial, the first male screw 101, the first female screw 201, the second male screw 202, and the second female screw 302 are coaxial, and the threads thereof are rotated about the axis of the screw shaft 200.

The first internal thread 201 has the same pitch as the second external thread 202, and the displacement of the inner and

outer workpieces

1 and 3 relative to the intermediate workpiece 2 is equal as the intermediate workpiece 2 rotates.

The inner-layer workpiece 1 is provided with a guide key 11, the outer-layer workpiece 3 is provided with a guide groove 31 along the axial direction of the screw shaft 200, the guide key 11 and the guide groove 31 are matched with each other, so that the guide key 11 slides along the guide groove 31 to fix the inner-layer workpiece 1, and the outer-layer workpiece 3 cannot rotate but can move along the axial direction of the screw shaft 200 under the constraint of the mutual matching of the guide key 11 and the guide groove 31.

The first internal thread 201 is opposite to the second external thread 202 in the direction of screwing, and the intermediate layer workpiece 2 can be rotated about the screw axis 200 while the inner layer workpiece 1 and the outer layer workpiece 3 are not rotated. As the intermediate layer workpiece 2 rotates, if the inner layer workpiece 1 and the intermediate layer workpiece 2 are gradually drawn closer, the outer layer workpiece 3 will translate along the axial direction of the screw shaft 200 and gradually draw away from the intermediate layer workpiece 2. Conversely, the opposite is true, that is, if the inner layer workpiece 1 and the middle layer workpiece 2 are gradually pulled far, the outer layer workpiece 3 and the middle layer workpiece 2 are gradually pulled close.

As shown in fig. 4 to 5, for the utility model discloses matched with axial magnetic field motor major structure, this embodiment is the permanent magnetism axial magnetic field motor of single stator birotor, and its structural style is that single stator is arranged in between two rotors, include: the rotor assembly comprises a first rotor assembly 4, a second rotor assembly 5, a stator assembly 6, a motor rotating shaft 7, a lower end cover 8, a motor shell 9 and an upper end cover 10. There are first rotor subassembly 4 and second rotor subassembly 5 respectively on stator module 6's both sides, wherein have very strong axial magnetic pull between first rotor subassembly 4 and stator module 6, also have very strong axial magnetic pull between second rotor subassembly 5 and stator module 6, if the distance between first rotor subassembly 4 and second rotor subassembly 5 and stator module 6 keeps equal in the assembly process, then the both sides magnetic pull that bears on stator module 6 can offset.

As shown in fig. 6, the inner layer workpiece 1 is fixed together with the first rotor assembly 4 of the axial magnetic field motor, and also comprises a rotating shaft 7 and a lower end cover 8 of the axial magnetic field motor, a guide key 11 is arranged on the inner layer workpiece 1, and the first rotor assembly 4 is arranged below the inner layer workpiece 1.

As shown in fig. 7, the middle layer workpiece 2 is fixed with the stator assembly 6 of the axial magnetic field motor through the switching tool 21, and the stator assembly 6 is disposed below the middle layer workpiece 2.

As shown in fig. 8, the outer layer workpiece 3 is fixed with the second rotor assembly 5 of the axial magnetic field motor, and the second rotor assembly 5 is disposed below the outer layer workpiece 3.

As shown in FIG. 9, for the utility model discloses wholly be connected the sketch with axial magnetic field motor major structure, inlayer work piece 1's periphery and top are arranged in to intermediate level work piece 2, and intermediate level work piece 2's periphery is arranged in to outer work piece 3.

As shown in fig. 6 to 9, the stator assembly 6 is disposed above the first rotor assembly 4, and the second rotor assembly 5 is disposed above the stator assembly 6 due to the switching function of the switching tool 21.

Fig. 10 is a schematic diagram of the assembly tool of fig. 9, in which fig. 10(a) shows an initial position of the assembly action, the first external thread 101 on the inner layer workpiece 1 is engaged with the first internal thread 201 on the intermediate layer workpiece 2, but the engaged portion is less, and the inner layer workpiece 1 is far away from the intermediate layer workpiece 2. The second internal thread 302 of the outer layer workpiece 3 is meshed with the second external thread 201 of the middle layer workpiece 2, and the meshed parts of the two parts are more.

The stator assembly 6 is positioned above the first rotor assembly 4, the second rotor assembly 5 is positioned above the stator assembly 6, and the initial distance of the stator assembly 6 from the first rotor assembly 4 and the second rotor assembly 5 is the same.

The motor shaft 7 is fixed, and the first rotor assembly 4 is also fixed. As shown in fig. 10(b), when the intermediate layer workpiece 2 is rotated about the screw axis 200, the intermediate layer workpiece 2 rotates the stator assembly 6. As the intermediate layer workpiece 2 rotates, the inner layer workpiece 1 and the intermediate layer workpiece 2 are gradually drawn closer, and the distance between the first rotor assembly 4 and the stator assembly 6 is synchronously drawn closer. On the other hand, as the middle layer workpiece 2 rotates, the distance between the outer layer workpiece 3 and the middle layer workpiece 2 gradually increases, and since the stator assembly 6 is connected with the middle layer workpiece 2 through the switching tool 21 and is arranged below the second rotor assembly 5, the distance between the second rotor assembly 5 and the stator assembly 6 is synchronously pushed. Because the thread pitches of the first internal thread 201 and the second external thread 202 are the same, the first rotor assembly 4 and the second rotor assembly 5 move synchronously towards the stator assembly 6 until the first rotor assembly 4 and the second rotor assembly 5 move to the position required by the motor assembly, so that the purpose of synchronously assembling the first rotor assembly 4 and the second rotor assembly 5 on two sides of the stator assembly 6 is realized, the magnetic pulling forces borne by the stator assembly 6 and from the first rotor assembly 4 and the second rotor assembly 5 are equal and offset, and the influence of the unilateral magnetic pulling force on the assembly is avoided.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an axial magnetic field motor's assembly fixture which characterized in that: comprises an inner layer workpiece (1), an intermediate layer workpiece (2), an outer layer workpiece (3) and a switching workpiece (21);

the middle layer workpiece (2) is arranged at the periphery of the inner layer workpiece (1); the outer layer workpiece (3) is arranged on the periphery of the middle layer workpiece (2);

the inner layer workpiece (1) is provided with a first external thread (101); the middle layer workpiece (2) is provided with a first internal thread (201) and a second external thread (202); the outer layer workpiece (3) is provided with a second internal thread (302);

the first external thread (101) on the inner layer workpiece (1) and the first internal thread (201) on the middle layer workpiece (2) are mutually matched and meshed to form a pair of thread groups; the second external threads (202) on the middle layer workpiece (2) and the second internal threads (302) on the outer layer workpiece (3) are mutually matched and meshed to form a pair of thread groups;

the first internal thread (201) on the middle layer workpiece (2) and the second external thread (202) are opposite in spiral direction; the first internal thread (201) and the second external thread (202) on the middle layer workpiece (2) are spirally rotated around the axis of the same spiral shaft (200).

2. The assembly fixture of an axial magnetic field motor according to claim 1, characterized in that: the first internal thread (201) on the intermediate layer workpiece (2) has the same pitch as the second external thread (202).

3. The assembly fixture of an axial magnetic field motor according to claim 1, characterized in that: the inner-layer workpiece (1) is provided with a guide key (11), the outer-layer workpiece (3) is provided with a guide groove (31) along the axial direction of the screw shaft (200), the guide key (11) is matched with the guide groove (31), and the guide key (11) slides along the guide groove (31).

4. The assembly fixture of an axial magnetic field motor according to claim 1, characterized in that: the intermediate layer workpiece (2) rotates around a spiral shaft (200).

5. The assembly fixture of an axial magnetic field motor according to claim 1, characterized in that: the inner layer workpiece (1) is fixed.