Linear motor module

Abstract

The utility model provides a linear motor module, comprising a guide rail, a stator arranged in the guide rail and capable of generating a magnetic field; the sliding table is connected to the guide rail, a plurality of air taps are arranged in the sliding table, and each air tap is used for being connected with an external air pump; the mover is arranged at the lower end of the sliding table and can drive the sliding table to reciprocate along the guide rail under the action of a magnetic field, a plurality of through holes are formed in the mover, and the through holes communicate with the air taps in a one-to-one correspondence mode; when an external air pump blows air into each air nozzle, the air can be blown into the gap between the rotor and the stator through each through hole so as to counteract the magnetic attraction force of the stator to the rotor and remove foreign matters on the stator. According to the linear motor module, the problems that the load of the guide rail is increased and the operation efficiency of the linear motor module is reduced due to the fact that the rotor of the existing linear motor module is subjected to magnetic attraction force from the stator can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of linear motor modules, and more specifically, relates to a linear motor module. Background Art

[0002] A linear motor module is also called a linear module, a linear motor, or a linear actuator. It is a system integration based on a linear motor, a grating scale, a Hall sensor, and a linear guide rail, and can be directly introduced into an automation device as a driving device.

[0003] However, the mover in the existing linear motor module is subject to the magnetic attraction force from the stator. The existence of the magnetic attraction force increases the friction between the guide rail and the slide table, resulting in a large load on the guide rail and a reduction in the operating efficiency of the linear motor module. In addition, during the operation of the linear motor module, foreign objects may fall on the surface of the stator, affecting the use of the linear motor module.

[0004] Therefore, the operation of the existing linear motor module still has limitations, and it is difficult to ensure its long-term use, and further improvement is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the existing linear motor module has an increased load on the guide rail and a reduced operating efficiency due to the mover being subject to the magnetic attraction force from the stator.

[0006] To achieve the above purpose, the utility model provides a linear motor module, including:

[0007] A guide rail, inside which a stator is arranged, and the stator can generate a magnetic field;

[0008] A slide table, connected to the guide rail, and a plurality of air nozzles are arranged inside the slide table, and each of the plurality of air nozzles is used to connect to an external air pump;

[0009] A mover, arranged at the lower end of the slide table and capable of driving the slide table to reciprocate along the guide rail under the action of the magnetic field, and a plurality of through holes are arranged inside the mover, and each of the plurality of through holes communicates with each of the air nozzles in a one-to-one correspondence;

[0010] When the external air pump blows gas into each air nozzle, the gas can be blown into the gap between the mover and the stator through each through hole to offset the magnetic attraction force of the stator on the mover and remove foreign objects on the stator.

[0011] Optionally, a plurality of air floating rods are arranged along the circumferential direction of the lower end of the mover, and the plurality of air floating rods are used to seal the circumferential side of the mover.

[0012] Optionally, the mover includes an iron core and a coil winding disposed within the iron core, and the coil winding is configured to connect to an external power supply device.

[0013] Optionally, the stator is a flat structure made of magnets.

[0014] Optionally, the cross-section of the slide has a U-shaped profile.

[0015] Optionally, a load-bearing platform for connecting a load is provided at the upper end of the slide.

[0016] Optionally, an air pipe is connected to each air nozzle, and the air pipe is connected to the external air pump through the gap between the load-bearing platform and the air nozzle.

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

[0018] In the linear motor module proposed by the present utility model, by providing a plurality of air nozzles on the slide, and each of the plurality of air nozzles is configured to connect to an external air pump, and then by providing a plurality of through holes in the mover, and each of the plurality of through holes communicates with each air nozzle in a one-to-one correspondence, so that when the external air pump blows gas into each air nozzle, the gas can be blown into the gap between the mover and the stator through each through hole, so as to counteract the magnetic attraction force of the stator on the mover and remove foreign objects on the stator. Compared with the existing linear motor module, the linear motor module of the present utility model can effectively reduce the friction force between the guide rail and the slide, reduce the load on the guide rail, ensure the cleanliness of the stator surface, and can accelerate the heat dissipation of the linear motor module, thereby improving the operating efficiency of the linear motor module and ensuring the long-term use of the linear motor module.

[0019] According to the above content, it can be seen that the present utility model can effectively solve the problems of the existing linear motor module, in which the mover is subject to the magnetic attraction force from the stator, resulting in an increase in the load on the guide rail and a reduction in the operating efficiency of the linear motor module.

[0020] Other features and advantages of the present utility model will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model can be better understood by referring to the following description in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout all the drawings to denote the same or similar components.

[0022] Figure 1 Shows a cross-sectional view of a linear motor module according to an embodiment of the present utility model;

[0023] Figure 2The structural schematic diagram of a linear motor module according to an embodiment of the present utility model is shown.

[0024] Reference numerals:

[0025] 1 - Guide rail;

[0026] 2 - Stator;

[0027] 3 - Slide table;

[0028] 4 - Air nozzle;

[0029] 5 - Rotor;

[0030] 51 - Through hole;

[0031] 6 - Air floating rod. Detailed implementation manners

[0032] In order to enable those skilled in the art to more fully understand the technical solutions of the present utility model, the exemplary implementation manners of the present utility model will be described more comprehensively and in detail below with reference to the accompanying drawings. Obviously, one or more of the implementation manners of the present utility model described below are merely one or more of the specific manners capable of implementing the technical solutions of the present utility model, and are not exhaustive. It should be understood that other manners belonging to a general inventive concept of the present utility model can be adopted to implement the technical solutions of the present utility model, and should not be limited by the exemplary implementation manners described. Based on one or more implementation manners of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Embodiment: Figure 1 The cross-sectional view of a linear motor module according to an embodiment of the present utility model is shown; Figure 2 The structural schematic diagram of a linear motor module according to an embodiment of the present utility model is shown.

[0034] Referring to Figure 1-2 , an embodiment of the present utility model provides a linear motor module, including:

[0035] A guide rail 1, inside which a stator 2 is arranged, and the stator 2 can generate a magnetic field;

[0036] A slide table 3, connected to the guide rail 1, and a plurality of air nozzles 4 are arranged inside the slide table 3, and each of the plurality of air nozzles 4 is used to connect to an external air pump;

[0037] A rotor 5, arranged at the lower end of the slide table 3 and capable of driving the slide table 3 to reciprocate along the guide rail 1 under the action of the magnetic field, and a plurality of through holes 51 are arranged inside the rotor 5, and each of the plurality of through holes 51 communicates with each of the air nozzles 4 in a one-to-one correspondence;

[0038] After the external air pump blows gas into each air nozzle 4, the gas can be blown into the gap between the rotor 5 and the stator 2 through each through hole 51 to offset the magnetic suction force of the stator 2 on the rotor 5 and remove foreign objects on the stator 2.

[0039] In a specific embodiment, the guide rail 1 is composed of a mounting base and a first rail and a second rail symmetrically arranged on the mounting base.

[0040] In a specific embodiment, sliders for connecting the slide table 2 are arranged on both the first rail and the second rail.

[0041] In a specific embodiment, the stator 2 is a flat plate structure made of a magnet.

[0042] In a specific embodiment, the rotor 5 includes an iron core and a coil winding arranged in the iron core. The coil winding is used to connect an external power supply device. After the coil winding is energized by the external power supply device, it can generate a magnetic field and interact with the magnetic field generated by the stator, so that the rotor can drive the slide table to reciprocate along the guide rail.

[0043] In a specific embodiment, the cross-sectional shape of the slide table 3 is U-shaped.

[0044] In an embodiment, a bearing platform (not shown in the figure) for connecting a load is arranged at the upper end of the slide table 3.

[0045] In an embodiment, an air pipe is connected to each air nozzle 4, and the air pipe is connected to an external air pump through the gap between the bearing platform and the air nozzle 4 (not shown in the figure).

[0046] Specifically, the external air pump can continuously blow gas into the gap between the rotor and the stator through the air nozzle when the slide table moves. On the one hand, the gas can generate a pressure to offset the magnetic suction force of the stator on the rotor, so as to reduce the load of the guide rail; on the other hand, the gas can also blow the foreign objects on the stator outwards to ensure the smooth operation of the slide table; on the other hand, the gas can also blow away the heat generated by the operation of the linear motor module, thereby accelerating heat dissipation, so that the linear motor module can have better performance to ensure its long-term stable operation.

[0047] In an embodiment, a plurality of air floating rods 6 are arranged along the circumference at the lower end of the rotor 5. The plurality of air floating rods 6 are used to seal the circumferential side of the rotor 5. To increase the pressure of the gas in the gap between the rotor and the stator and achieve a better effect of offsetting the magnetic suction force.

[0048] The linear motor module proposed by the present utility model is provided with a plurality of air nozzles on the slide table, and each of the plurality of air nozzles is used to connect to an external air pump. Then, a plurality of through holes are provided in the mover, and each of the plurality of through holes is correspondingly communicated with each of the air nozzles. When the external air pump blows gas into each air nozzle, the gas can be blown into the gap between the mover and the stator through each through hole, so as to offset the magnetic suction force of the stator on the mover and remove foreign matters on the stator.

[0049] Therefore, compared with the existing linear motor module, the linear motor module of the present utility model can effectively reduce the friction between the guide rail and the slide table, reduce the load on the guide rail, ensure the cleanliness of the stator surface, and can accelerate the heat dissipation of the linear motor module, thereby improving the operation efficiency of the linear motor module and ensuring the long-term use of the linear motor module.

[0050] Although one or more embodiments of the present utility model have been described above, those of ordinary skill in the art should understand that the present utility model can be implemented in any other form without departing from its gist and scope. Therefore, the embodiments described above are illustrative rather than restrictive. Many modifications and substitutions are obvious to those of ordinary skill in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.

Claims

1. A linear motor module, characterized in that, Comprising: A guide rail, inside which a stator is provided, and the stator is capable of generating a magnetic field; A slide table, connected to the guide rail, and a plurality of air nozzles are provided inside the slide table, and each of the plurality of air nozzles is used to connect to an external air pump; A mover, arranged at the lower end of the slide table and capable of driving the slide table to reciprocate along the guide rail under the action of the magnetic field, and a plurality of through holes are provided inside the mover, and each of the plurality of through holes communicates with each of the air nozzles in a one-to-one correspondence; After the external air pump blows gas into each of the air nozzles, the gas can be blown into the gap between the mover and the stator through each of the through holes, so as to offset the magnetic suction force of the stator on the mover and remove foreign matters on the stator.

2. The linear motor module according to claim 1, wherein A plurality of air floating rods are arranged along the circumferential direction of the lower end of the mover, and the plurality of air floating rods are used to seal the circumferential side of the mover.

3. The linear motor module according to claim 1, characterized in that, The mover includes an iron core and a coil winding arranged inside the iron core, and the coil winding is used to connect to an external power supply device.

4. The linear motor module according to claim 1, wherein The stator is a flat plate structure made of a magnet.

5. The linear motor module according to claim 1, wherein The cross-sectional shape of the slide table is U-shaped.

6. The linear motor module according to claim 5, characterized in that, A bearing platform for connecting a load is arranged at the upper end of the slide table.

7. The linear motor module according to claim 6, wherein A trachea is connected to each of the air nozzles, and the trachea is connected to the external air pump through the gap between the bearing platform and the air nozzle.

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