Linear motor with iron core

Abstract

The utility model belongs to the technical field of linear motors, and particularly relates to a linear motor with an iron core, which comprises a base, a stator is arranged on the upper surface of the base, sliding rails are arranged on two sides of the base, sliding sleeves are arranged on the sliding rails in a sliding manner, and a rotor is connected to one side of each sliding sleeve. The two ends of the sliding sleeve are provided with dust removal assemblies, the dust removal assemblies are used for sweeping dust in the grooves, and balls matched with the grooves are arranged on the inner walls of the two sides of the sliding sleeve at equal intervals, so that the situation that in the long-time using process of equipment, dust is prone to being accumulated in the grooves, and consequently movement of the sliding plate is affected is prevented, and the service life of the sliding plate is prolonged. And the working efficiency of the linear motor is further influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of linear motors, and particularly relates to an iron-core linear motor. Background Art

[0002] A linear motor is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotating motor cut radially and unfolded into a plane. A linear motor is also called a linear electric machine, a linear motor, a linear motor, and a push rod motor. The typical composition of its internal coil is three-phase, and brushless commutation is realized by Hall elements. A linear motor includes an iron-core linear motor and a non-iron-core linear motor. The iron-core linear motor can generate a higher thrust density than the non-iron-core linear motor by using an iron core, and can provide a greater thrust under the same size.

[0003] Chinese Utility Model Patent CN220022585U discloses an iron-core linear motor module, including: a base, a stator is arranged on the base, slide rails are arranged on both sides of the base, a slide plate is slidably arranged on the two slide rails, and a mover is arranged on one side of the slide plate close to the base.

[0004] In the above technical solution, although it has the effect of improving the working efficiency of the linear motor, however, the upper end of the slide rail is a groove and is an exposed structure, and the slide plate moves along the groove. During long-term use of the device, dust is likely to accumulate in the groove, thereby affecting the movement of the slide plate and further affecting the working efficiency of the linear motor. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an iron-core linear motor for the above-mentioned existing technical problems, achieving the effect of preventing dust from easily accumulating in the groove during long-term use of the device, thereby affecting the movement of the slide plate and further affecting the working efficiency of the linear motor.

[0006] In view of this, the utility model provides an iron-core linear motor, including: a base, a stator is arranged on the upper surface of the base, slide rails are arranged on both sides of the base, a sliding sleeve is slidably arranged on the slide rails, and a mover is connected to one side of the sliding sleeve. The feature is that grooves are arranged on both sides of the slide rails, and dust cleaning components are arranged at both ends of the sliding sleeve. The dust cleaning components are used for cleaning the dust in the grooves. Among them, a plurality of balls adapted to the grooves are arranged at equal intervals on the inner walls of both sides of the sliding sleeve.

[0007] In this technical solution, when the mover (coil) passes through an electric current, it will be affected by a force in the magnetic field generated by the stator (permanent magnet or electromagnet), so that the sliding sleeve connected to the mover moves along the slide rail. By equidistantly arranging balls adapted to the grooves on the inner walls of both sides of the sliding sleeve, the balls can not only further reduce the contact area between the sliding sleeve and the slide rail, but also convert sliding friction into rolling friction, significantly reducing the frictional force and improving the sliding smoothness. Due to the problem that dust is likely to accumulate in the grooves during the long-term use of the equipment, dust cleaning components are arranged at both ends of the sliding sleeve. The dust cleaning components can automatically clean the dust in the grooves, keep the slide rail clean, avoid the influence of dust on the movement of the slide plate, and thus improve the working efficiency and stability of the linear motor.

[0008] In the above technical solution, further, the dust cleaning component includes: two arc-shaped mounting plates, an arc-shaped plate is arranged between the two arc-shaped mounting plates, a plurality of bristles are arranged on the arc-shaped plate, and one side of each of the arc-shaped mounting plates and the arc-shaped plate is connected to the inner wall of the outer end of the sliding sleeve. Among them, the bristles are in close contact with the inner wall of the groove.

[0009] In this technical solution, as the sliding sleeve moves, the dust cleaning component also moves accordingly. Since the bristles are in close contact with the inner wall of the groove, when the sliding sleeve moves, the bristles will clean the dust in the groove.

[0010] In the above technical solution, further, the inside of the arc-shaped plate is a cavity structure, a plurality of dust suction ports are arranged at one end of the arc-shaped plate close to the groove, the dust suction ports are arranged staggered with the bristles, and among them, the dust suction ports are communicated with the cavity.

[0011] In the above technical solution, further, a dust conveying channel is arranged inside the sliding sleeve, a dust outlet communicated with the cavity is arranged on one side of the arc-shaped plate close to the sliding sleeve, and a dust suction fan is arranged on the outer surface of the sliding sleeve. Among them, one end of the dust conveying channel is communicated with the dust suction fan, and the other end is communicated with the dust outlet.

[0012] In this technical solution, as the sliding sleeve moves, the bristles clean the dust in the groove, and then under the action of the suction force of the dust suction fan, and the dust suction ports are arranged staggered with the bristles to ensure that while cleaning the dust, the dust is sucked into the cavity through the dust suction ports, and then the sucked dust enters the dust conveying channel through the cavity and the dust outlet, and is then absorbed and cleaned by the dust suction fan from the dust conveying channel, thus realizing the function of automatically cleaning the dust in the groove, so that it is not necessary for the staff to clean frequently, improving the working efficiency of the staff, as well as the service life of the slide rail and the sliding sleeve.

[0013] In the above technical solution, further, anti-collision plates are arranged at the left and right ends of the base, and two anti-collision blocks are arranged on the inner side surface of the anti-collision plates.

[0014] In this technical solution, the anti-collision block can reduce the impact force of the sliding sleeve hitting the anti-collision plate, thereby improving the stability of the sliding sleeve during the sliding process.

[0015] In the above technical solution, further, an iron core is further provided on the base. There are two iron cores, and they are located on both sides of the stator.

[0016] In this technical solution, by providing the iron core, the energy conversion between the stator and the rotor can be improved, and energy loss can be reduced.

[0017] The beneficial effects of the present utility model are:

[0018] 1. When the rotor (coil) passes through an electric current, it will be acted upon by a force in the magnetic field generated by the stator (permanent magnet or electromagnet), so that the sliding sleeve connected to the rotor moves along the slide rail. By equidistantly arranging balls adapted to the grooves on the inner walls of both sides of the sliding sleeve, the balls can not only further reduce the contact area between the sliding sleeve and the slide rail, but also convert sliding friction into rolling friction, significantly reducing the frictional force and improving the sliding smoothness.

[0019] 2. As the sliding sleeve moves, the brush bristles clean the dust in the grooves, and then under the suction of the dust suction fan, and the dust suction port is arranged staggered with the brush bristles to ensure that while cleaning the dust, the dust is sucked into the cavity through the dust suction port, and then the sucked dust enters the dust conveying channel through the cavity and the dust outlet, and is then sucked and cleaned by the dust suction fan from the dust conveying channel, thereby realizing the function of automatically cleaning the dust in the grooves, so that it is not necessary for the staff to clean frequently, improving the work efficiency of the staff, as well as the service life of the slide rail and the sliding sleeve. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of a core-type linear motor of the present utility model;

[0021] Figure 2 is a schematic structural diagram inside the sliding sleeve of a core-type linear motor of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the dust cleaning assembly of a core-type linear motor of the present utility model;

[0023] The markings in the figure are represented as:

[0024] 1. Base; 2. Stator; 3. Rotor; 4. Sliding sleeve; 5. Slide rail; 6. Dust cleaning assembly; 601. Dust suction fan; 602. Arc-shaped mounting plate; 603. Arc-shaped plate; 604. Brush bristles; 605. Dust suction port; 606. Dust outlet; 7. Groove; 8. Anti-collision plate; 9. Anti-collision block; 10. Ball. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0028] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0029] It should be noted that in this application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0030] Embodiment 1:

[0031] As Figures 1 - 3 shown, this embodiment provides a core-type linear motor, which includes: a base 1, a stator 2 is provided on the upper surface of the base 1, slide rails 5 are arranged on both sides of the base 1, a sliding sleeve 4 slides on the slide rails 5, and a mover 3 is connected to one side of the sliding sleeve 4. It is characterized in that grooves 7 are provided on both sides of the slide rails 5, dust cleaning components 6 are provided at both ends of the sliding sleeve 4, and the dust cleaning components 6 are used to clean the dust in the grooves 7. Among them, a plurality of balls 10 adapted to the grooves 7 are equidistantly arranged on the inner walls of both sides of the sliding sleeve 4.

[0032] When a current passes through the mover 3 (coil), it will be acted upon by a force in the magnetic field generated by the stator 2 (permanent magnet or electromagnet), so that the sliding sleeve 4 connected to the mover 3 moves along the slide rail 5. By equidistantly arranging a plurality of balls 10 adapted to the grooves 7 on the inner walls of both sides of the sliding sleeve 4, the balls 10 can not only further reduce the contact area between the sliding sleeve 4 and the slide rail 5, but also convert sliding friction into rolling friction, significantly reducing the frictional force and improving the sliding smoothness. Due to the problem that dust is likely to accumulate in the grooves 7 during the long-term use of the device, dust cleaning components 6 are provided at both ends of the sliding sleeve 4, and the dust cleaning components 6 can automatically clean the dust in the grooves 7, keep the slide rails 5 clean, avoid the influence of dust on the movement of the slide plate, and thus improve the working efficiency and stability of the linear motor.

[0033] Further, the dust cleaning assembly 6 includes: two arc-shaped mounting plates 602. An arc-shaped plate 603 is provided between the two arc-shaped mounting plates 602. A plurality of bristles 604 are provided on the arc-shaped plate 603. One side of each of the arc-shaped mounting plates 602 and the arc-shaped plate 603 is connected to the inner wall of the outer end of the sliding sleeve 4. Among them, the bristles 604 are in close contact with the inner wall of the groove 7. As the sliding sleeve 4 moves, the dust cleaning assembly 6 also moves accordingly. Since the bristles 604 are in close contact with the inner wall of the groove 7, when the sliding sleeve 4 moves, the bristles 604 will clean the dust in the groove 7.

[0034] Further, the interior of the arc-shaped plate 603 is a cavity structure. A plurality of dust suction ports 605 are provided at one end of the arc-shaped plate 603 close to the groove 7. The dust suction ports 605 are arranged staggered with the bristles 604. Among them, the dust suction ports 605 are communicated with the cavity. A dust conveying channel (not shown in the figure) is provided inside the sliding sleeve 4. An air outlet 606 communicated with the cavity is provided on one side of the arc-shaped plate 603 close to the sliding sleeve 4. A dust suction fan 601 is provided on the outer surface of the sliding sleeve 4. Among them, one end of the dust conveying channel is communicated with the dust suction fan 601, and the other end is communicated with the air outlet 606. As the sliding sleeve 4 moves, the bristles 604 clean the dust in the groove 7. Then, under the suction of the dust suction fan 601, and the dust suction ports 605 are arranged staggered with the bristles 604, ensuring that while cleaning the dust, the dust is sucked into the cavity through the dust suction ports 605. Then the sucked dust enters the dust conveying channel through the cavity and the air outlet 606, and is then sucked and cleaned by the dust suction fan 601 from the dust conveying channel. Thus, the function of automatically cleaning the dust in the groove 7 is realized, so that it is not necessary for the staff to clean frequently, improving the work efficiency of the staff and the service life of the slide rail 5 and the sliding sleeve 4.

[0035] Further, anti-collision plates 8 are provided at the left and right ends of the base 1. Two anti-collision blocks 9 are provided on the inner side surface of the anti-collision plates 8. The anti-collision blocks 9 can reduce the impact force of the sliding sleeve 4 hitting the anti-collision plates 8, thereby improving the stability of the sliding sleeve 4 during the sliding process.

[0036] Further, iron cores are also provided on the base 1. There are two iron cores, and they are located on both sides of the stator 2. By providing the iron cores, the energy conversion between the stator 2 and the rotor 3 can be improved, and the energy loss can be reduced.

[0037] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A coreless linear motor, comprising: Base (1), on the upper surface of the base (1) there is a stator (2), on both sides of the base (1) there are slide rails (5), a sliding sleeve (4) slides on the slide rails (5), one side of the sliding sleeve (4) is connected with a rotor (3), and it is characterized in that on both sides of the slide rails (5) there are grooves (7), at both ends of the sliding sleeve (4) there are dust cleaning components (6), and the dust cleaning components (6) are used for cleaning the dust in the grooves (7). Among them, on the inner walls of both sides of the sliding sleeve (4) there are equidistantly arranged balls (10) adapted to the grooves (7).

2. The iron-core linear motor according to claim 1, wherein: The dust cleaning component (6) includes: two arc-shaped mounting plates (602), between the two arc-shaped mounting plates (602) there is an arc-shaped plate (603), on the arc-shaped plate (603) there are a number of bristles (604), and one side of the arc-shaped mounting plate (602) and the arc-shaped plate (603) are both connected with the inner wall of the outer end of the sliding sleeve (4). Among them, the bristles (604) are in close contact with the inner wall of the groove (7).

3. The iron-core linear motor according to claim 2, characterized in that: The interior of the arc-shaped plate (603) is a cavity structure, at one end of the arc-shaped plate (603) close to the groove (7) there are a number of dust suction ports (605), the dust suction ports (605) and the bristles (604) are arranged alternately. Among them, the dust suction ports (605) are communicated with the cavity.

4. A core-type linear motor according to claim 3, wherein: Inside the sliding sleeve (4) there is a dust conveying channel, on one side of the arc-shaped plate (603) close to the sliding sleeve (4) there is a dust outlet (606) communicated with the cavity, on the outer surface of the sliding sleeve (4) there is a dust suction fan (601). Among them, one end of the dust conveying channel is communicated with the dust suction fan (601), and the other end is communicated with the dust outlet (606).

5. A core-type linear motor according to claim 1, characterized in that: On the left and right ends of the base (1) there are anti-collision plates (8), and on the inner side surface of the anti-collision plates (8) there are two anti-collision blocks (9).

6. A core-type linear motor according to claim 1, wherein: On the base (1) there is also provided an iron core, there are two iron cores and they are located on both sides of the stator (2).

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