CN212572203U

CN212572203U - Novel linear electric motor bottom bar stator

Info

Publication number: CN212572203U
Application number: CN202021391094.7U
Authority: CN
Inventors: 宫崎辰宗
Original assignee: Shanghai Mindong Electromechanical Co ltd
Current assignee: Shanghai Mindong Electromechanical Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-02-19
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses a novel linear electric motor end strip stator, including end strip, first iron plate, second iron plate, magnetite and clearance locating piece, the both sides of end strip are located respectively to the bottom of first iron plate and the bottom of second iron plate, just first iron plate and second iron plate symmetry set up, install respectively in the one side that first iron plate and second iron plate are relative the magnetite, the magnetite sets up relatively, and is provided with a plurality ofly with one side interval, is equipped with between two liang of adjacent magnetites the clearance locating piece, first iron plate and second iron plate are step-like structure with the junction of end strip. The utility model discloses a set up step or inclined plane in the end strip side, the effectual problem of having solved the positive interval undersize between magnetite and the magnetite that traditional linear electric motor stator iron plate leads to receiving the phenomenon of the inward contraction of magnetite appeal.

Description

Novel linear electric motor bottom bar stator

Technical Field

The utility model belongs to the technical field of linear electric motor, more specifically say, it relates to a novel linear electric motor end strip stator.

Background

There are two main types of motors: the iron core linear motor and the coreless linear motor are determined by the structure of the main components of the motor. The core design produces very high thrust and is often found in machine tools and heavy duty transport applications. On the other hand, ironless linear motors are of low quality and can produce high dynamic motion, and are therefore popular in packaging, semiconductor and general automation applications. The ironless linear motor is so named because the main components (similar to the stator of a rotating electrical machine) are made of windings wound on laminated steel and embedded in epoxy resin. This construction method eliminates iron in the primary part, so unlike the iron core motor, there is no attraction force between the primary and secondary parts, which causes cogging and makes assembly difficult. There is no cogging or braking force so that they can travel with almost zero force and speed ripple, which means that they can not only travel at very high speeds with excellent positioning accuracy, but also travel at very slow speeds, typically less than 0.01 percent speed variation.

The installation surfaces on two sides of the bottom strip of the traditional coreless linear motor stator are not provided with steps or inclined planes, iron plates on two sides of the stator can be influenced by suction force between the magnets on the inner side to enable the iron plates on two sides to contract inwards, the positive distance between the magnets and the magnets is changed, the adjustment can not be carried out again, the gap of the stator is poor, and the gap precision of the coreless linear motor stator and the performance of the coreless linear motor are influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a novel linear electric motor end strip stator solves the shrink problem of iron plate, avoids the stator clearance bad.

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

the utility model provides a novel linear electric motor end strip stator, includes end strip, first iron plate, second iron plate, magnetite and clearance locating piece, the both sides of end strip are located respectively to the bottom of first iron plate and the bottom of second iron plate, just first iron plate and second iron plate symmetry set up, install respectively in the one side that first iron plate and second iron plate are relative the magnetite, the magnetite sets up relatively, and is provided with a plurality ofly with one side interval, is equipped with between two liang of adjacent magnetite clearance locating piece, first iron plate and second iron plate are step-like structure with the junction of end strip.

The utility model discloses further set up to: one side or two sides of the bottom strip are provided with step-shaped structures.

The utility model discloses further set up to: the side surface of the bottom strip can be processed into an inclined surface, and the inclined surface can be positioned on one side or two sides of the bottom strip.

The utility model discloses further set up to: a first screw hole and a second screw hole are respectively arranged on two sides of the bottom strip, a first screw through hole is formed in the first iron plate, and the root of a first screw penetrates through the first screw through hole and then is screwed in the first screw hole; the second iron plate is provided with a second screw through hole, and the root part of the second screw penetrates through the second screw through hole and then is screwed in the second screw hole.

The utility model discloses further set up to: the magnet and the gap positioning block are fixed on the first iron plate and the second iron plate respectively through glue.

The utility model discloses further set up to: first screw hole and second screw hole interval setting respectively, and distribute along the length direction of sill bar.

The utility model discloses further set up to: the magnets are arranged in an alternating manner.

To sum up, the utility model has the advantages of it is following:

1. the iron plate fixed on the side surface of the bottom bar is slightly expanded by adding the steps on the side surface of the stator, so that the inward shrinkage of the iron plate caused by the attraction of the magnets on the inner side is balanced. And the distance between the iron plates at the two sides of the stator can be adjusted by adjusting the tightness of the fixing screws on the iron plates to control the outward-stretching angle of the iron plates. The problem that due to the fact that iron plates on two sides of a traditional coreless linear motor stator are attracted by magnets, the iron plates on the two sides shrink inwards to cause that the positive spacing between the magnets is too small and cannot be adjusted again is effectively solved;

2. the design mode that the side face of the bottom strip is provided with the step structure comprises the bottom strip with the one-side step structure and the two-side step structure and the bottom strip with the one-side inclined plane and the two-side inclined plane. Considering the processing cost of the bottom strip, the design mode of increasing the steps on one side of the bottom strip can meet the effect to be achieved, and the bottom strip is easy to process, so the design mode of increasing the steps on one side is recommended. The utility model discloses be applicable to the bottom bar both sides simultaneously and set up the use mode that step and bottom bar unilateral or both sides set up the inclined plane.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic view of various embodiments of a backing strip;

fig. 4 is a top view of the present invention.

Description of reference numerals: the screw comprises a bottom strip 1, a first screw hole 11, a second screw hole 12, a first iron plate 2, a first screw through hole 21, a second iron plate 3, a second screw through hole 31, a magnet 4, a gap positioning block 5, a first screw 61 and a second screw 62.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a novel linear electric motor end strip stator, as shown in figure 1, includes end strip 1, first iron plate 2, second iron plate 3, magnetite 4 and clearance locating piece 5, the both sides of end strip 1 are located respectively to the bottom of first iron plate 2 and the bottom of second iron plate 3, just first iron plate 2 and the symmetrical setting of second iron plate 3, install respectively in the one side that first iron plate 2 and second iron plate 3 are relative magnetite 4, magnetite 4 sets up relatively, and is provided with a plurality ofly with one side interval, is equipped with between two liang of adjacent magnetite 4 clearance locating piece 5, first iron plate 2 and second iron plate 3 are step-like structure with the junction of end strip 1. The iron plate fixed on the side surface of the bottom bar 1 is slightly expanded by adding steps on the side surface of the stator, so that the inward shrinkage of the iron plate caused by the attraction of the inner magnet 4 is balanced. And the distance between the iron plates at the two sides of the stator can be adjusted by adjusting the tightness of the fixing screws on the iron plates to control the outward-stretching angle of the iron plates. The utility model discloses a set up step or inclined plane in the 1 side of end strip, the effectual problem of having solved the positive interval undersize between magnetite and the magnetite that traditional linear electric motor stator iron plate leads to receiving the phenomenon of the inward contraction of magnetite appeal.

In the embodiment of the present invention, one side or both sides of the bottom strip 1 are provided with a step-like structure.

In the embodiment of the present invention, the side surface of the bottom strip 1 can be processed into an inclined surface, and the inclined surface can be located on one side or both sides of the bottom strip.

The design mode that the side face of the bottom strip 1 is provided with the step structure comprises the bottom strip 1 with the one-side step structure and the two-side step structure and the bottom strip 1 with the one-side inclined plane and the two-side inclined plane. Considering the processing cost of the bottom strip 1, the design mode of adding steps on one side of the bottom strip 1 can meet the effect to be achieved, and the bottom strip is easy to process, so the design mode of adding steps on one side is recommended. The utility model discloses be applicable to the bottom bar both sides simultaneously and set up the use mode that step and bottom bar unilateral or both sides set up the inclined plane.

In the embodiment of the present invention, two sides of the bottom strip 1 are respectively provided with a first screw hole 11 and a second screw hole 12, the first iron plate 2 is provided with a first screw through hole 21, and the root of the first screw 61 passes through the first screw through hole 21 and then is screwed to the first screw hole 11; the second iron plate 3 is provided with a second screw through hole 31, and the root of the second screw 62 is screwed into the second screw hole 12 after passing through the second screw through hole 31, the utility model discloses the fixed mode that mentions also can be realized through other fixed modes that can reach the same effect.

In the embodiment of the present invention, the magnet 4 and the gap positioning block 5 are fixed to the first iron plate 2 and the second iron plate 3 respectively by glue.

In the embodiment of the present invention, the first screw holes 11 and the second screw holes 12 are respectively disposed at intervals and distributed along the length direction of the bottom strip 1.

In the embodiment of the present invention, the polarities of the magnets 4 are alternately arranged, and the magnets 4 include S poles and N poles.

By adopting the design of the step-shaped structure, the problem that the forward spacing between the magnets 4 and the magnets 4 is too small and cannot be adjusted again due to the fact that iron plates on two sides of the traditional coreless linear motor stator are attracted by the magnets 4 and the iron plates on the two sides shrink inwards is effectively solved. The iron plate fixed on the side surface of the step bottom bar 1 is slightly expanded by adding the step on one side or two sides of the stator bottom bar 1 or making one side or two sides of the stator bottom bar 1 into an inclined plane, so that the inward shrinkage of the iron plate caused by the attraction of the inner magnet 4 is balanced. And the distance between the iron plates at the two sides of the stator can be adjusted by adjusting the tightness of the fixing screws on the iron plates to control the outward-stretching angle of the iron plates.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a novel linear electric motor end strip stator, its characterized in that, includes end strip (1), first iron plate (2), second iron plate (3), magnetite (4) and clearance locating piece (5), the both sides of end strip (1) are located respectively to the bottom of first iron plate (2) and the bottom of second iron plate (3), just first iron plate (2) and second iron plate (3) symmetry set up, install respectively in the one side that first iron plate (2) and second iron plate (3) are relative magnetite (4), magnetite (4) set up relatively, and are provided with a plurality ofly with one side interval, are equipped with between two liang of adjacent magnetite (4) clearance locating piece (5), first iron plate (2) and second iron plate (3) are step-like structure with the junction of end strip (1).

2. The novel linear motor bottom bar stator of claim 1, characterized in that: one side or two sides of the bottom strip (1) are provided with step-shaped structures.

3. The novel linear motor bottom bar stator of claim 2, characterized in that: the side surface of the bottom strip (1) can be processed into an inclined surface, and the inclined surface can be positioned on one side or two sides of the bottom strip (1).

4. The novel linear motor bottom bar stator of claim 1, characterized in that: a first screw hole (11) and a second screw hole (12) are respectively formed in two sides of the bottom strip (1), a first screw through hole (21) is formed in the first iron plate (2), and the root of a first screw (61) penetrates through the first screw (61) through hole and then is screwed into the first screw hole (11); the second iron plate (3) is provided with a second screw through hole (31), and the root part of the second screw (62) passes through the second screw through hole (31) and then is screwed with the second screw hole (12).

5. The novel linear motor bottom bar stator of claim 1, characterized in that: the magnet (4) and the gap positioning block (5) are fixed on the first iron plate (2) and the second iron plate (3) through glue respectively.

6. The novel linear motor bottom bar stator of claim 4, characterized in that: first screw hole (11) and second screw hole (12) set up at interval respectively, and distribute along the length direction of sill bar (1).

7. The novel linear motor bottom bar stator of claim 1, characterized in that: the magnets (4) are arranged in an alternating polarity manner.