A linear motor loading platform

Abstract

The present invention discloses a linear motor loading platform, which relates to the field of linear motors and includes a linear motor guide rail and a linear motor moving platform. The linear motor guide rail is provided with four long rectangular slots, two of which are installed with a first electromagnetic coil, and the other two are installed with a second electromagnetic coil. When the first electromagnetic coil is energized, the first electromagnetic coil generates a magnetic field and magnetically repels the corresponding mover magnet; when the second electromagnetic coil is energized, the second electromagnetic coil generates a magnetic field and magnetically attracts the corresponding mover magnet. The present invention can achieve stable linear motion, and can stop and start as needed, making it easy to control. It does not require the use of existing flexible hinges as guide components, which not only saves space but also reduces the resistance of the linear motor moving platform and the loading platform during operation.

Description

Technical Field

[0001] The present invention relates to the field of linear motors, and in particular to a linear motor loading platform. Background Art

[0002] Linear motors are motors that convert electrical energy directly into mechanical energy for linear motion. They are widely used in industrial automation, precision manufacturing, logistics, and transportation. Their main advantages include high precision, high efficiency, fast response, and the absence of complex mechanical transmission devices.

[0003] Traditional linear motors usually require the use of guiding components such as flexible hinges and guide wheels to ensure the stability and accuracy of movement. These guiding components not only increase the complexity and cost of the equipment, but may also introduce additional friction and wear, resulting in high operating resistance and occupying a large space, thus reducing the efficiency and reliability of the system.

[0004] Therefore, it is necessary to propose a linear motor loading platform to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a linear motor loading platform to solve the problem that traditional linear motors usually need to use flexible hinges, guide wheels and other guide components to ensure the stability and accuracy of movement. These guide components not only increase the complexity and cost of the equipment, but may also introduce additional friction and wear, large operating resistance, and occupy a large space, thereby reducing the efficiency and reliability of the system.

[0006] To achieve the above object, the present invention provides the following technical solution: a linear motor comprising:

[0007] A linear motor guide rail is provided in a rectangular plate-like structure, wherein a long rectangular groove is provided inside the linear motor guide rail, and four long rectangular grooves are provided. First electromagnetic coils are installed in two of the long rectangular grooves, and second electromagnetic coils are installed in the other two long rectangular grooves. Multiple first electromagnetic coils and second electromagnetic coils are provided along the length direction of the linear motor guide rail;

[0008] A linear motor moving platform is provided in a rectangular frame structure, wherein the linear motor moving platform is movably sleeved on the outside of the linear motor guide rail, and mover magnets are provided inside the upper and lower ends of the linear motor moving platform;

[0009] When the first electromagnetic coil is energized, the first electromagnetic coil generates a magnetic field and magnetically repels the corresponding mover magnet;

[0010] When the second electromagnetic coil is energized, the second electromagnetic coil generates a magnetic field and is magnetically attracted to the corresponding mover magnet.

[0011] Preferably, a wind channel is provided at the inner center of the linear motor guide rail, and the wind channel runs through both ends of the linear motor guide rail;

[0012] Among them, a first fan is fixedly installed at one end of the linear motor guide rail, and the first fan is connected to the wind channel; an exhaust port is provided at the other end of the linear motor guide rail, and the exhaust port is connected to the wind channel, and a first solenoid valve is provided in the exhaust port.

[0013] Preferably, side air holes are provided on both sides of the wind channel, and there are multiple side air holes, which are distributed at equal distances. The side air holes are away from one end of the wind channel and penetrate the side of the linear motor guide rail.

[0014] Preferably, both the upper and lower surfaces of the linear motor guide rail are provided with surface air holes, and there are a plurality of surface air holes, which are distributed at equal distances, and the surface air holes are connected to the wind channel.

[0015] Preferably, a third solenoid valve is provided in the side air hole, and a second solenoid valve is provided in the surface air hole.

[0016] Preferably, a cache cavity is provided inside both sides of the linear motor moving platform, and an air outlet is provided inside the linear motor moving platform. There are multiple air outlets, and the multiple air outlets are all connected to the interior of the cache cavity. The end of the air outlet away from the cache cavity passes through the inner side surface of the linear motor moving platform and points to the side surface of the linear motor guide rail. A second fan is also installed on the outer surfaces of both sides of the linear motor moving platform, and the second fan is connected to the interior of the air outlet.

[0017] Preferably, the four long rectangular slots are distributed in a matrix around the wind channel.

[0018] Preferably, the inner wall edges of the front and rear ends of the linear motor moving platform are both provided with inclined surfaces.

[0019] Preferably, a first gap is provided between the upper and lower inner walls of the linear motor moving platform and the upper and lower surfaces of the linear motor guide rail;

[0020] A second gap is provided between the inner walls on both sides of the linear motor moving platform and the side surfaces of the linear motor guide rail.

[0021] The present invention also discloses a linear motor loading platform, which comprises a linear motor and a loading platform. The loading platform is detachably connected to the upper part of the linear motor moving platform.

[0022] The technical effects and advantages of the present invention are as follows:

[0023] The linear motor loading platform can achieve stable linear motion and stop as it moves, making it easy to control. It does not require the use of existing flexible hinges as guide components, which not only saves space but also reduces the resistance of the linear motor moving table and the loading platform during operation.

[0024] In the present invention, based on the relative vertical arrangement of the first electromagnetic coil and the mover magnet, a first gap of a certain distance can always be generated between the upper and lower surfaces of the linear motor guide rail and the upper and lower inner walls of the linear motor movable platform, thereby reducing the resistance generated by the cargo pressing the loading platform. The linear motor movable platform is completely suspended and moved on the linear motor guide rail, with low resistance and wear. There is no need to set up other stabilization and guiding mechanisms, and the practicality is strong.

[0025] In the present invention, the side air holes, wind channels and surface air holes are all arranged inside the linear motor guide rail. The wind force entering and exiting the linear motor guide rail can fully and quickly discharge the heat around the first electromagnetic coil and the second electromagnetic coil, thereby achieving the purpose of efficient heat dissipation.

[0026] It can be quickly positioned by the attraction force of the moving magnets, without the need for an additional stop mechanism, thus reducing the loss generated during the movement of the linear motor moving stage;

[0027] The wind entering the wind channel can also be discharged from the surface air holes, which has the purpose of reducing air resistance, removing dust, reducing noise and heat dissipation;

[0028] When the linear motor movable table moves along the length direction of the linear motor guide rail, the third solenoid valve located at the front end of the linear motor movable table on the linear motor guide rail can be controlled to open, so that gas is discharged to the front end of the linear motor movable table's travel position, thereby blowing away foreign matter on the surface of the linear motor guide rail to achieve the purpose of dust removal, and enable the linear motor movable table to move back and forth more stably along the length direction of the linear motor guide rail;

[0029] When the second and third solenoid valves in the reverse direction of the linear motor moving platform are opened, the wind in the wind channel is supplied to the tail end of the cargo in the direction of travel, which can quickly eliminate the negative pressure area at the tail end of the cargo, thereby reducing air resistance;

[0030] When the first fan is turned on, the second solenoid valve and the third solenoid valve at the front end of the linear motor moving platform in the direction of travel need to be turned on at the same time. The first fan generates suction, thereby quickly sucking the air at the front end of the cargo in the direction of travel into the wind channel and discharging it, reducing the pressure at the front end of the cargo in the direction of travel, and also achieving the purpose of reducing air resistance, reducing losses, being more energy-efficient, and reducing shock wave phenomena, thereby making the linear motor moving platform move more stably along the length direction of the linear motor guide rail;

[0031] By reducing the air pressure changes at the front or rear end of the cargo, the noise generated during movement is relatively reduced, and the surface where the air enters and exits the linear motor guide has a certain dust removal and heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of the linear motor loading platform from one perspective of the present invention.

[0033] Figure 2 This is a structural schematic diagram of the linear motor loading platform of the present invention from another perspective.

[0034] Figure 3 It is a vertical cross-sectional view along the length direction of the linear motor guide rail of the present invention.

[0035] Figure 4 It is a transverse cross-sectional view along the length direction of the linear motor guide rail of the present invention.

[0036] Figure 5 It is a vertical cross-sectional view along the height direction of the linear motor guide rail of the present invention.

[0037] Figure 6 This is a schematic structural diagram of the first electromagnetic coil and the second electromagnetic coil of the present invention.

[0038] In the figure: 1. Linear motor guide rail; 2. Linear motor moving platform; 3. Side air vent; 4. Surface air vent; 5. Long rectangular slot; 6. First fan; 7. Second fan; 8. Loading platform; 9. Exhaust port; 10. First solenoid valve; 11. Wind channel; 12. Second solenoid valve; 13. Mover magnet; 14. Buffer chamber; 15. Air outlet; 16. Inclined surface; 17. Third solenoid valve; 18. First electromagnetic coil; 19. Second electromagnetic coil; 20. First gap; 21. Second gap. DETAILED DESCRIPTION

[0039] The present invention provides Figures 1-6 A linear motor loading platform is shown, which can achieve stable linear motion and stop as it moves, making it easy to control. It does not require the use of existing flexible hinges as guide components, which not only saves space but also reduces the resistance during the operation of the linear motor moving platform 2 and the loading platform 8.

[0040] refer to Figures 1 to 3 As shown in the figure, the linear motor loading platform in the present invention includes a linear motor guide rail 1 and a linear motor moving platform 2. The linear motor guide rail 1 is a rectangular plate structure, and the linear motor moving platform 2 is a rectangular frame structure. The linear motor moving platform 2 is movably mounted on the outside of the linear motor guide rail 1 and can run along the length direction of the linear motor guide rail 1, thereby achieving the purpose of linear drive.

[0041] The loading platform 8 is detachably mounted on the upper surface of the linear motor moving platform 2 , and is used for loading objects.

[0042] refer to Figure 4 and Figure 5 As shown in the figure, a buffer cavity 14 is provided inside both sides of the linear motor moving platform 2, and an air outlet 15 is provided inside the linear motor moving platform 2. There are multiple air outlets 15, and the multiple air outlets 15 are all connected with the interior of the buffer cavity 14. The end of the air outlet 15 away from the buffer cavity 14 passes through the inner side of the linear motor moving platform 2 and points to the side of the linear motor guide rail 1. A second fan 7 is also installed on the outer surface of both sides of the linear motor moving platform 2. The second fan 7 is connected with the interior of the air outlet 15. When the second fan 7 is turned on, it can provide wind force to the side of the linear motor guide rail 1 through the buffer cavity 14 and the air outlet 15 in turn. The wind force blows on both sides of the linear motor guide rail 1 at the same time to ensure that a second gap 21 with a certain distance is always maintained between the inner side of the linear motor moving platform 2 and the side of the linear motor guide rail 1, thereby avoiding the phenomenon of lateral deviation when the linear motor moving platform 2 moves along the length direction of the linear motor guide rail 1, so that the linear motor moving platform 2 moves more stably, thereby eliminating the need to connect flexible guide hinges and other mechanisms.

[0043] A wind channel 11 is provided at the inner center position of the linear motor guide rail 1, and the wind channel 11 passes through both ends of the linear motor guide rail 1 at the same time, wherein a first fan 6 is fixedly installed at one end of the linear motor guide rail 1, and the first fan 6 is connected to the wind channel 11, and a first solenoid valve 10 is provided at the other end of the linear motor guide rail 1, and the first solenoid valve 10 is used to control the on and off of the wind channel 11, and an exhaust port 9 is provided at the position where one end of the wind channel 11 with the first solenoid valve 10 passes through the end of the linear motor guide rail 1, and side air holes 3 are provided on both sides of the wind channel 11, and the side air holes 3 are provided on both sides of the wind channel 11. There are multiple holes 3, and the multiple side air holes 3 are distributed at equal distances. The side air holes 3 penetrate the side of the linear motor guide rail 1 at one end away from the wind channel 11. When the linear motor movable platform 2 moves along the length direction of the linear motor guide rail 1, the wind blowing toward the side of the linear motor guide rail 1 through the air outlet 15 can also enter the interior of the wind channel 11 through the corresponding side air holes 3; when the first solenoid valve 10 is controlled to open, the wind is discharged from the exhaust port 9, which serves the purpose of dissipating heat to the linear motor guide rail 1 and the linear motor movable platform 2, thereby preventing the linear motor guide rail 1 and the linear motor movable platform 2 from overheating.

[0044] Surface air holes 4 are provided on the upper and lower surfaces of the linear motor guide rail 1. There are multiple surface air holes 4, which are distributed at equal distances. The surface air holes 4 are connected to the wind channel 11. The wind entering the wind channel 11 can also be discharged from the surface air holes 4, which has the purpose of reducing air resistance, removing dust, reducing noise generation and dissipating heat. Specifically:

[0045] A second solenoid valve 12 is provided in the surface air hole 4, and a third solenoid valve 17 is provided in the side air hole 3;

[0046] When the linear motor movable table 2 moves along the length direction of the linear motor guide rail 1, the third solenoid valve 17 located at the front end of the linear motor movable table 2 in the travel direction on the linear motor guide rail 1 can be controlled to open, so that gas is discharged to the front end of the travel position of the linear motor movable table 2, thereby blowing away foreign matter on the surface of the linear motor guide rail 1, achieving the purpose of dust removal, and enabling the linear motor movable table 2 to move back and forth more stably along the length direction of the linear motor guide rail 1.

[0047] When the object carried on the stage 8 is heavy or large in size, there will inevitably be a large resistance when the linear motor movable platform 2 moves along the length direction of the linear motor guide rail 1. Especially when the moving speed is fast, the linear motor movable platform 2, the stage 8 and the air in front of the object will be quickly compressed to generate a shock wave phenomenon, which will cause a large resistance to the object's forward movement. At this time, the first fan 6 or the second solenoid valve 12 and the third solenoid valve 17 in the opposite direction of the linear motor movable platform 2 can be turned on;

[0048] When the second solenoid valve 12 and the third solenoid valve 17 of the linear motor movable platform 2 in the reverse direction of travel are opened, the wind in the wind channel 11 is supplied to the tail end of the cargo in the direction of travel, which can quickly eliminate the negative pressure area at the tail end of the cargo, thereby reducing air resistance.

[0049] When the first fan 6 is turned on, the second solenoid valve 12 and the third solenoid valve 17 at the front end of the linear motor movable platform 2 in the direction of travel need to be turned on at the same time. The first fan 6 generates suction, thereby quickly sucking the air at the front end of the cargo's forward direction into the wind channel 11 and discharging it, reducing the pressure at the front end of the cargo's forward direction, and also achieving the purpose of reducing air resistance, reducing losses, being more energy-efficient, and reducing shock wave phenomena, thereby allowing the linear motor movable platform 2 to move more stably along the length direction of the linear motor guide rail 1.

[0050] At the same time, by reducing the air pressure changes at the front or rear end of the goods, the noise generated during the movement is relatively reduced, and the air entering and exiting the surface of the linear motor guide rail 1 has a certain dust removal and heat dissipation effect.

[0051] The edges of the inner walls at both ends of the linear motor moving platform 2 are provided with inclined surfaces 16. The setting of the inclined surfaces 16 makes it easier to push compressed air during the movement of the linear motor moving platform 2, especially the air delivered to the side of the linear motor guide rail 1 by the air outlet 15 can be discharged from the position of the inclined surface 16. It can not only utilize the effect of pushing compressed air to maintain the gap between the linear motor guide rail 1 and the linear motor moving platform 2, such as: the first gap 20 between the upper and lower inner walls of the linear motor moving platform 2 and the upper and lower surfaces of the linear motor guide rail 1 and the second gap 21 between the inner walls on both sides of the linear motor moving platform 2 and the two side surfaces of the linear motor guide rail 1; it can also push air to blow quickly on the surface of the linear motor guide rail 1, thereby achieving the purpose of dust removal on the surface of the linear motor guide rail 1.

[0052] refer to Figure 5 As shown in FIG, mover magnets 13 are provided inside both upper and lower ends of the linear motor moving platform 2 .

[0053] refer to Figure 6 As shown in the figure, a long rectangular groove 5 is provided inside the linear motor guide rail 1, and there are four long rectangular grooves 5. The four long rectangular grooves 5 are distributed in a matrix around the wind channel 11. The two long rectangular grooves 5 on the same side of the wind channel 11 are both installed with a first electromagnetic coil 18, and the two long rectangular grooves 5 on the other side of the wind channel 11 are both installed with a second electromagnetic coil 19; the first electromagnetic coil 18 and the second electromagnetic coil 19 are both provided in plurality, and the first electromagnetic coil 18 and the first electromagnetic valve 10 can be energized to generate magnetism, and the first electromagnetic coil 18 and the first electromagnetic valve 10 on the upper and lower sides of the linear motor guide rail 1 are both energized to generate magnetism. The electromagnetic coil 18 is magnetically repelled from the mover magnets 13 on the upper and lower sides of the linear motor moving platform 2, and the second electromagnetic coil 19 on the upper and lower sides of the linear motor guide rail 1 is magnetically attracted to the mover magnets 13 on the upper and lower sides of the linear motor moving platform 2; when the corresponding first electromagnetic coil 18 is energized, the first electromagnetic coil 18 generates a magnetic field, and a repulsive force is generated between the first electromagnetic coil 18 and the corresponding mover magnet 13, and the mover magnet 13 is subjected to the Lorentz force in the magnetic field, thereby realizing linear motion. The specific principle is the existing technology and will not be elaborated here.

[0054] The present invention, based on the setting of the second electromagnetic coil 19, can achieve the purpose of quickly positioning the linear motor moving platform 2 without connecting flexible guide hinges and other mechanisms. Specifically, the second electromagnetic coil 19 at the corresponding position generates magnetism when energized. At this time, there is an attractive force between the second electromagnetic coil 19 and the corresponding mover magnet 13. When the linear motor moving platform 2 moves to this position, it can be quickly positioned by the attractive force of the mover magnet 13, without the need to set an additional stop mechanism, thereby reducing the loss generated during the movement of the linear motor moving platform 2.

[0055] When the first electromagnetic coil 18 and the second electromagnetic coil 19 are energized to generate a magnetic field, heat will also be generated accordingly. When the linear motor guide rail 1 and the linear motor movable table 2 are used at a high frequency, the heat generated by the first electromagnetic coil 18 and the second electromagnetic coil 19 will be too large, resulting in rapid aging of the first electromagnetic coil 18 and the second electromagnetic coil 19, increased resistance of the first electromagnetic coil 18 and the second electromagnetic coil 19, and a short service life. Therefore, in the present invention, the side air holes 3, the wind channel 11 and the surface air holes 4 are all arranged inside the linear motor guide rail 1, and the wind force entering and exiting the linear motor guide rail 1 can fully and quickly discharge the heat around the first electromagnetic coil 18 and the second electromagnetic coil 19, thereby achieving the purpose of efficient heat dissipation.

[0056] In the prior art, the mover magnet 13 and the first electromagnetic coil 18 in the linear motor are usually arranged horizontally left and right, and the linear motor moving platform 2 is equipped with flexible guide hinges, guide wheels and other mechanisms, but it is necessary to consider the problem of excessive resistance caused by excessive pressure of the cargo on the loading platform 8.

[0057] In addition, the present invention improves the existing technology based on the relative upper and lower settings of the first electromagnetic coil 18 and the mover magnet 13. When the linear motor moving platform 2 moves along the length direction of the linear motor guide rail 1, the repulsive force generated between the mover magnet 13 and the first electromagnetic coil 18 can always create a first gap 20 of a certain distance between the upper and lower surfaces of the linear motor guide rail 1 and the upper and lower inner walls of the linear motor moving platform 2, thereby reducing the resistance generated by the cargo pressing platform 8. The linear motor moving platform 2 is completely suspended and moved on the linear motor guide rail 1, with less resistance and wear. There is no need to set up other stabilization and guiding mechanisms, and it is highly practical.

[0058] It should be noted that, in actual use, support frames are installed at the bottom of both ends of the linear motor guide rail 1 to support the linear motor guide rail 1. This is a common existing technology and will not be described in detail here.

Claims

1. A linear motor, characterized in that: include: A linear motor guide rail (1) is provided in a rectangular plate-like structure, wherein a long rectangular groove (5) is provided inside the linear motor guide rail (1), and four long rectangular grooves (5) are provided, wherein first electromagnetic coils (18) are installed in two of the long rectangular grooves (5), and second electromagnetic coils (19) are installed in the other two long rectangular grooves (5), and a plurality of the first electromagnetic coils (18) and the second electromagnetic coils (19) are provided along the length direction of the linear motor guide rail (1); A linear motor moving platform (2) is provided in a rectangular frame structure, wherein the linear motor moving platform (2) is movably sleeved on the outside of the linear motor guide rail (1), and mover magnets (13) are provided inside the upper and lower ends of the linear motor moving platform (2); When the first electromagnetic coil (18) is energized, the first electromagnetic coil (18) generates a magnetic field and magnetically repels the corresponding mover magnet (13); When the second electromagnetic coil (19) is energized, the second electromagnetic coil (19) generates a magnetic field and is magnetically attracted to the corresponding mover magnet (13); A wind channel (11) is provided at the inner center of the linear motor guide rail (1), and the wind channel (11) simultaneously passes through both ends of the linear motor guide rail (1); A first fan (6) is fixedly mounted on one end of the linear motor guide rail (1), and the first fan (6) is connected to the wind channel (11); an exhaust port (9) is provided at the other end of the linear motor guide rail (1), and the exhaust port (9) is connected to the wind channel (11), and a first solenoid valve (10) is provided in the exhaust port (9); Buffer cavities (14) are provided inside both sides of the linear motor moving platform (2), and air outlet holes (15) are provided inside the linear motor moving platform (2). A plurality of air outlet holes (15) are provided, and the plurality of air outlet holes (15) are all connected to the inside of the buffer cavity (14). One end of the air outlet hole (15) away from the buffer cavity (14) passes through the inner side surface of the linear motor moving platform (2) and points to the side surface of the linear motor guide rail (1). A second fan (7) is also installed on the outer surfaces of both sides of the linear motor moving platform (2), and the second fan (7) is connected to the inside of the air outlet hole (15).

2. A linear motor according to claim 1, characterized in that: Side air holes (3) are provided on both sides of the wind channel (11), and a plurality of side air holes (3) are provided. The plurality of side air holes (3) are distributed at equal distances, and one end of the side air hole (3) away from the wind channel (11) penetrates the side of the linear motor guide rail (1).

3. A linear motor according to claim 2, characterized in that: The upper and lower surfaces of the linear motor guide rail (1) are both provided with surface air holes (4), a plurality of surface air holes (4) are provided, the plurality of surface air holes (4) are distributed at equal distances, and the surface air holes (4) are connected to the wind channel (11).

4. A linear motor according to claim 3, characterized in that: A third electromagnetic valve (17) is provided in the side air hole (3), and a second electromagnetic valve (12) is provided in the surface air hole (4).

5. The linear motor according to claim 1, characterized in that: Four long rectangular slots (5) are distributed in a matrix around the wind channel (11).

6. The linear motor according to claim 1, characterized in that: The inner wall edges of both the front and rear ends of the linear motor moving platform (2) are provided with inclined surfaces (16).

7. The linear motor according to claim 1, characterized in that: A first gap (20) is provided between the upper and lower inner walls of the linear motor moving platform (2) and the upper and lower surfaces of the linear motor guide rail (1); A second gap (21) is provided between the inner walls on both sides of the linear motor moving platform (2) and the side surfaces of the linear motor guide rail (1).

8. A linear motor loading platform, characterized by: A linear motor according to any one of claims 1 to 7, further comprising a loading platform (8), wherein the loading platform (8) is detachably connected above the linear motor moving platform (2).

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