阅读说明：本技术 双轨道高密度推力永磁直线同步电机 (Double-track high-density thrust permanent magnet linear synchronous motor ) 是由 罗群 罗亮 赵吉文 于 2019-11-15 设计创作，主要内容包括：本发明涉及永磁同步直线电机领域，公开了一种双轨道高密度推力永磁直线同步电机，包括若干铁芯且交错布置的两个初级定子轨道，一侧初级定子轨道上相邻铁芯形成的凹槽正对另一侧初级定子轨道上的铁芯，两个初级定子轨道之间设置盖板和若干永磁体相对布置的两个次级动子，次级动子顶端插入盖板内并与盖板构成滑移配合，相互错位的铁心槽边缘，能够抵消齿槽效应与边端效应，实现永磁直流电机的高密度稳定推力，永磁体与铁芯相对设置的初级定子轨道、次级动子为一组，保证气隙空间，简化电机结构的同时，实现两个初级定子同时往复、互不干涉的目的，满足电机的应用需求。(The invention relates to the field of permanent magnet synchronous linear motors, and discloses a double-track high-density thrust permanent magnet linear synchronous motor which comprises a plurality of iron cores and two primary stator tracks which are arranged in a staggered manner, wherein a groove formed by adjacent iron cores on the primary stator track on one side is just opposite to the iron cores on the primary stator track on the other side, a cover plate and two secondary rotors which are arranged oppositely by a plurality of permanent magnets are arranged between the two primary stator tracks, the top ends of the secondary rotors are inserted into the cover plate and form sliding fit with the cover plate, the staggered iron core slot edges can offset the tooth space effect and the edge end effect, so that high-density stable thrust of a permanent magnet direct current motor is realized, the primary stator tracks and the secondary rotors which are arranged oppositely by the permanent magnets and the iron cores are, the purpose that the two primary stators reciprocate simultaneously and do not interfere with each other is achieved, and the application requirement of the motor is met.)

1. The utility model provides a double track way high density thrust permanent magnetism linear synchronous motor, characterized in that, including two primary stator tracks (10) that a plurality of iron cores (20) are relative and staggered arrangement, recess (21) that adjacent iron core (20) formed on one side primary stator track (10) just to iron core (20) on the primary stator track (10) of opposite side, set up two secondary active cell (40) that apron (30) and a plurality of permanent magnet (45) were arranged relatively between two primary stator tracks (10), secondary active cell (40) top is inserted in apron (30) and is constituted sliding fit with apron (30).

2. The double-track high-density thrust permanent magnet linear synchronous motor according to claim 1, wherein the primary stator track (10) comprises a side wall (13) and iron cores (20) arranged on the side wall (13), each iron core (20) is provided with a winding coil (22), a plurality of wind-dispersing openings (14) are formed in two sides of a root vertical surface close to the side wall (13), a wind-cooling cavity (11) and a water-cooling cavity (12) are arranged in an outer side wall cavity of the primary stator track (10) from inside to outside, and the wind-dispersing openings (14) are connected with the wind-cooling cavity (11).

3. The dual-track high-density thrust permanent magnet linear synchronous motor according to claim 2, wherein the air cooling cavity (11) and the water cooling cavity (12) extend along the length direction of the primary stator track (10), a runway-shaped water cooling pipe (121) is arranged in the water cooling cavity (12), and a plurality of air outlet pipelines matched with the ventilation openings (14) are arranged on the inner side of the air cooling cavity (11).

4. The dual-track high-density thrust permanent magnet linear synchronous motor according to any one of claims 1 to 3, wherein the bottom of the cover plate (30) is provided with double ⊥ rows of sliding grooves (31), the top end of the secondary rotor (40) is correspondingly provided with a T-shaped clamping strip (41), a wheel sliding group a (42) is arranged between the top surface of the T-shaped clamping strip (41) and the bottom of the ⊥ row of sliding grooves (31), and a double wheel sliding group b (43) is arranged between the two sides of the horizontal ground of the T-shaped clamping strip (41) and the wall of the ⊥ row of sliding grooves (31).

5. The double-track high-density thrust permanent magnet linear synchronous motor according to claim 4, wherein a guide bar (44) is arranged outside the secondary rotor (40), the other end of the guide bar (44) is inserted on the side wall of the primary stator track (10) on the same side, and the side wall of the primary stator track (10) is provided with a guide groove (15) matched with the guide bar (44) along the length direction.

6. The dual-rail high-density thrust permanent magnet linear synchronous motor according to claim 5, wherein the wind-dispelling openings (14) at both sides of the iron core (20) are arranged at the same height, and the number of the wind-dispelling openings (14) at the same side is more than or equal to 3.

Technical Field

The invention relates to the field of permanent magnet synchronous linear motors, in particular to a double-track high-density thrust permanent magnet linear synchronous motor.

Background

In the permanent magnet linear synchronous motor, a certain thrust fluctuation is caused due to the existence of a primary iron core cogging effect and an edge effect, but if the primary iron core is directly taken away, only an air coil is left in the primary iron core, and although the load thrust fluctuation is reduced, high thrust in a unit volume cannot be maintained, so that the thrust density is low, and high-density stable thrust cannot be realized. Meanwhile, when the primary serves as a rotor, the air gap needs to be controlled by means of structures such as a slide rail and a pulley, and the simultaneous reciprocating operation of the double tracks is difficult to realize; the winding coil is easy to heat when being electrified, if a water cooling pipeline is added in the primary groove, the cooling effect on the winding coil can be achieved, but the groove wall of the primary groove becomes thick, and the high-density stable thrust cannot be realized.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the double-track permanent magnet linear synchronous motor which can offset the side end effect and keep high-density thrust.

The invention solves the technical problems through the following technical means:

the utility model provides a double track way high density thrust permanent magnetism linear synchronous motor, includes two elementary stator tracks of a plurality of iron cores and staggered arrangement, and the recess that adjacent iron core formed on the elementary stator track of one side is just to the iron core on the elementary stator track of opposite side, sets up two secondary movers that apron and a plurality of permanent magnet were arranged relatively between two elementary stator tracks, and secondary mover top inserts in the apron and constitutes the cooperation of sliding with the apron.

The invention has the advantages that: the primary stator tracks and the secondary rotors which are arranged oppositely to the permanent magnets and the iron cores are in a group, so that an air gap space is ensured, the purposes of synchronous reciprocation and mutual noninterference of the two primary stators are realized while the motor structure is simplified, and the application requirements of the motor are met.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the structure of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a schematic view of the internal structure of the sidewall of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a dual-track high-density thrust permanent magnet linear synchronous motor includes two primary stator tracks 10 with iron cores 20 arranged oppositely and in a staggered manner, a groove 21 formed by adjacent iron cores 20 on one primary stator track 10 is opposite to the iron core 20 on the other primary stator track 10, the two primary stator tracks 10 are fixed, and the iron cores 20 on the two primary stator tracks 10 are arranged oppositely and in a staggered manner, so that edge effects generated by the iron cores 20 are offset, thrust fluctuation is reduced, and high-density thrust is realized. A cover plate 30 and two secondary rotors 40 which are oppositely arranged by a plurality of permanent magnets 45 are arranged between the two primary stator tracks 10, and the top ends of the secondary rotors 40 are inserted into the cover plate 30 and form sliding fit with the cover plate 30. As shown in fig. 2, a1 and a2 between the permanent magnet 45 and the iron core 20, which are oppositely arranged, are in one group, and b1 and b2 are in one group, so that not only is an adequate air gap between the permanent magnet 45 and the iron core 20 ensured, but also the double-guide-rail operation of complementary interference can be realized, and the actual use requirement of the permanent magnet linear synchronous motor is met.

The bottom of the cover plate 30 is provided with double ⊥ -row sliding grooves 31, the top end of the secondary rotor 40 is correspondingly provided with a T-shaped clamping strip 41, a pulley sliding group a42 is arranged between the top surface of the T-shaped clamping strip 41 and the bottom of the ⊥ -row sliding groove 31, a double pulley sliding group b43 is arranged between two sides of the horizontal ground of the T-shaped clamping strip 41 and the groove wall of the ⊥ -row sliding groove 31, the double ⊥ -row sliding grooves 31 and the double T-shaped clamping strips 41 form sliding fit of the primary stator track 10 and the secondary rotor 40, and the pulley sliding group a42 and the double pulley sliding group b43 are additionally arranged to effectively reduce the friction force of a contact surface.

As shown in fig. 3, a guide bar 44 is disposed outside the secondary mover 40, the other end of the guide bar 44 is inserted on the side wall of the primary stator track 10 on the same side, and the side wall of the primary stator track 10 is provided with a guide slot 15 along the length direction, which is matched with the guide bar 44. And the guide bars 44 and the guide grooves 15 are additionally arranged to further standardize the traveling route of the secondary rotor 40 and ensure that the secondary rotor 40 slides according to a set path.

In the operation process of the permanent magnet linear synchronous motor, the electric load of high-density thrust is very large, the winding coil 22 needs to dissipate heat in time for a main heat source, the primary stator track 10 in the embodiment comprises a side wall 13 and iron cores 20 arranged on the side wall 13, each iron core 20 is provided with the winding coil 22 and is close to two sides of a root vertical surface of the side wall 13 and provided with a plurality of air vents 14, wall cavities of the side wall 13 are provided with an air cooling cavity 11 and a water cooling cavity 12 from inside to outside, and the air vents 14 are connected with the air cooling cavity 11. The air cooling cavity 11 and the water cooling cavity 12 are horizontally arranged in the wall cavity of the side wall 13, the water cooling cavity 12 is used for cooling the air cooling cavity 11, cold air is discharged from the air outlet 14 to directly cool the winding coil 22, the temperature cannot be increased due to overlong stroke of the primary stator track 10 or heat of the winding coil 22, and the winding coil 22 is continuously cooled in colleges.

As a specific structure of the above scheme, as shown in fig. 4, the air cooling cavity 11 and the water cooling cavity 12 extend along the rail length direction of the primary stator rail 10, a runway-shaped water cooling pipe 121 is arranged in the water cooling cavity 12, and a plurality of air outlet pipelines matched with the ventilation openings 14 are arranged on the inner side of the air cooling cavity 11. The runway-shaped water-cooling pipe 121 is connected with an external circulating cooling water source, the air-cooling cavity 11 is connected with an external cold air source, and then enters an air outlet pipeline to be discharged from the air outlet 14 to directly cool the winding coil 22.

The air distributing openings 14 on the two sides of the iron core 20 are arranged at the same height, the number of the air distributing openings 14 on the same side is more than or equal to 3, the air distributing openings 14 are arranged at the same height, the airflow change around the iron core 20 is the same, and the stability of the device is improved.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.