Two-plate slide foot structure for strong magnetic suspension

Abstract

The application relates to the technical field of two-plate slide feet, in particular to a two-plate slide foot structure with strong magnetic suspension. The structure comprises a slide rail and a slide foot, the lower end of the slide rail is provided with a main magnet, the slide foot is provided with a main electromagnet, the main electromagnet is arranged below the main magnet, the structure further comprises a protection assembly, the protection assembly comprises a plurality of mounting blocks, the mounting blocks are arranged at the lower ends of four corners of the slide foot respectively, the lower ends of the mounting blocks are provided with mounting grooves, the mounting grooves are movably provided with moving blocks, and the moving blocks are provided above driving assemblies for driving the moving blocks to move. Through the arrangement of the moving blocks, the moving blocks and the slide rail are in contact, no collision occurs between the main magnet and the main electromagnet, the installation is facilitated, the slide foot can be supported in time when the main electromagnet stops running, the main electromagnet and the main magnet are protected, the falling distance of the two plates is reduced, and the two plates are protected.

Description

Technical Field

[0001] This invention relates to the field of two-plate sliding foot technology, specifically to a two-plate sliding foot structure with strong magnetic levitation. Background Technology

[0002] During injection molding, the second platen moves on the machine body guide rail under the pull of the tie rod. Since the second platen, mold and tail plate and other mold closing components have a large weight, the guide rail will deform, affecting the normal pulling between the tie rod and the second platen, thus affecting product quality and normal use of the injection molding machine. Therefore, a second platen sliding foot device is set between the second platen and the machine body.

[0003] Chinese patent CN205147273U discloses a magnetically levitated, wear-free, two-plate sliding foot device for a die-casting machine. It includes a guide rail and an integral sliding foot positioned thereon. Two plates are placed on the integral sliding foot. A permanent magnet is mounted on the guide rail, and an electromagnet is mounted on the integral sliding foot. The electromagnet is connected to a power supply and a control unit. A displacement sensor is also mounted on the integral sliding foot, connected to a signal converter, which in turn connects to a power amplifier, which in turn connects to the control unit. When powered on, the magnetic field polarity generated by the electromagnet on the integral sliding foot is the same as that of the permanent magnet on the guide rail. The like poles repel each other, and this repulsive force levitates the integral sliding foot, maintaining a relative height. When the integral sliding foot fluctuates in position, the displacement sensor detects the displacement change. The signal converter converts the detected displacement signal into a control signal, and the power amplifier feeds the control signal back to the control unit to control the current of the electromagnet, adjusting the magnetic field generated by the electromagnet, thereby adjusting the position of the integral sliding foot.

[0004] The aforementioned patent utilizes magnetic levitation to reduce friction between the sliding foot and the guide rail, thus reducing wear on the sliding foot. However, during use, since the injection molding machine is not used continuously, when it stops, the sliding foot naturally falls down, causing collisions between the magnets and resulting in damage, which affects subsequent use. Furthermore, since the magnets are only installed in the vertical direction, they are prone to lateral displacement. Summary of the Invention

[0005] To address the problems existing in current technology, a two-plate sliding foot structure with strong magnetic levitation is provided. By setting a moving block, when the moving block and the slide rail are in contact, there is no collision between the main magnet and the main electromagnet, which facilitates installation. Furthermore, when the main electromagnet stops running, the sliding foot is supported in time, protecting the main electromagnet and the main magnet, and also reducing the falling distance of the two plates, thus protecting the two plates.

[0006] To address the problems of existing technologies, this invention provides a two-plate sliding foot structure with strong magnetic levitation, including a slide rail and sliding feet. A main magnet is provided at the downward-facing end of the slide rail, and a main electromagnet is provided on the sliding feet, positioned below the main magnet. The structure also includes a protective component, which comprises several mounting blocks. The mounting blocks are respectively located at the lower ends of the four corners of the sliding feet, and each mounting block has a mounting groove at its lower end. A movable block is movably mounted within the mounting groove, and a driving component for moving the movable block is located above the movable block.

[0007] Preferably, the drive assembly includes a rotating rod and a threaded rod, and the upper end of the moving block is provided with a threaded hole; Two rotating rods are provided, each passing through the sliding foot, and two worm gears are sleeved on the rotating rods; The threaded rods are configured as four, and the upper end of the threaded rods is provided with worm gears. The worm gears and worms mesh with each other in a one-to-one correspondence. The end of the threaded rod away from the worm gear is set in the threaded hole, and the worm gear can drive the threaded rod to rotate. Limiting blocks are also provided on both vertical sides of the movable block, and a limiting groove that cooperates with the limiting blocks is provided in the mounting groove.

[0008] Preferably, the drive assembly further includes a bearing housing, which is disposed near both ends of the rotating rod, and the end faces of both ends of the rotating rod are provided with internal hexagonal notches.

[0009] Preferably, each of the four corners of the sliding foot is provided with an installation port, the worm gear and worm are disposed in the installation port, a baffle plate is provided on the outside of the installation port, an installation plate is provided on the vertical side of the baffle plate, a fixing groove is provided on the installation port to cooperate with the installation plate, a fixing rod is provided above the fixing groove, and a pressure plate is rotatably disposed on the fixing rod, the pressure plate can abut against the end of the installation plate near the outside.

[0010] Preferably, the lower end of the movable block is further provided with a roller, the roller rolling in the same direction as the sliding foot, and the slide rail is provided with a groove that cooperates with the roller.

[0011] Preferably, the main electromagnet is composed of several units, and vertical displacement sensors for detecting the vertical height of the sliding foot are provided at the four corners of the sliding foot.

[0012] Preferably, two auxiliary electromagnets are arranged on the inner side of the slide foot along the moving direction of the slide foot. The auxiliary electromagnets are mirror images arranged on both sides of the slide rail. The slide rail is provided with auxiliary magnets that cooperate with the auxiliary electromagnets. A horizontal displacement sensor for detecting the horizontal distance between the slide foot and the slide rail is also provided on the inner side of the slide foot.

[0013] Preferably, the structure further includes a heat dissipation assembly, which includes a connecting rod and a cooling fan; The connecting rods are configured in two pairs, and the two pairs of connecting rods are respectively set at the front and rear ends of the sliding foot along the moving direction. Each pair of connecting rods is mirror-set on both sides of the slide rail. The cooling fan is located at the end of the connecting rod away from the sliding foot, and the cooling fan is tilted, with the end of the cooling fan facing the sliding foot aligned with the main magnet and the main electromagnet.

[0014] Preferably, the structure further includes a dust-proof assembly, which includes a dust-proof plate disposed at both ends of the sliding foot along the moving direction. The dust-proof plate is bolted to the sliding foot and has several ventilation holes.

[0015] Preferably, the dust-covering assembly further includes a brush and a clamping block; The sliding foot is also provided with support rods at both ends along the direction of movement, and two clamping plates are provided at the end of the support rod away from the sliding foot. The brush is positioned between two clamping plates, clamping the clamping plates, and the working end of the brush abuts against the slide rail. The clamping block is disposed on the clamping plate and can clamp the clamping plate. The end of the clamping block facing the clamping plate is provided with a pressing slope, and the outside of the clamping plate is provided with a pulling block to facilitate pulling the clamping plate.

[0016] The advantages of this application compared to the prior art are: 1. This application sets up a moving block, which prevents the main magnet and the main electromagnet from colliding when the moving block contacts the slide rail, facilitating installation. Furthermore, it provides timely support to the sliding foot when the main electromagnet stops running, protecting the main electromagnet and the main magnet, and also reducing the falling distance of the second board, thus protecting the second board.

[0017] 2. This application sets up a rotating rod and a threaded rod, which are connected by a worm gear, so that the height of the moving block can be adjusted in one direction, ensuring the stability of the moving block. Furthermore, by raising or lowering the moving block, the main electromagnet, the main magnet, and the second plate can be effectively protected when facing different suspension heights.

[0018] 3. This application sets up a connecting rod with a cooling fan at the end away from the sliding foot. The cooling fan is tilted towards the main magnet and the main electromagnet. The air outlet of the cooling fan at the front end in the sliding foot's movement direction faces the sliding foot, while the air outlet of the cooling fan at the rear end in the sliding foot's movement direction is away from the sliding foot. This effectively blows out the heat generated by the main electromagnet, reduces the heat on the main electromagnet, and ensures the effective operating time of the main electromagnet. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a two-plate sliding foot structure with strong magnetic levitation.

[0020] Figure 2 This is a partial exploded view of the sliding foot, which uses a two-plate sliding foot structure with strong magnetic levitation.

[0021] Figure 3 This is a right view of a dust removal panel using a two-plate sliding structure with strong magnetic levitation.

[0022] Figure 4 yes Figure 3 A partial sectional view of section BB in the middle.

[0023] Figure 5 yes Figure 3 A partial sectional view of section CC.

[0024] Figure 6 yes Figure 2 A magnified view of a portion of point A in the middle.

[0025] Figure 7 This is a cross-sectional view of the sliding foot, which uses a two-plate sliding foot structure with strong magnetic levitation.

[0026] Figure 8 This is an exploded view of a dust-proof assembly with a two-plate sliding foot structure featuring strong magnetic levitation.

[0027] Figure 9 The right view shows a two-plate sliding structure with strong magnetic levitation. Figure 10 This is a front view of a clamping block with a two-plate sliding foot structure that uses strong magnetic levitation.

[0028] The diagram is labeled as follows: 1-Slide rail; 11-Main magnet; 12-Slide groove; 13-Secondary magnet; 2-Slide foot; 21-Main electromagnet; 22-Mounting port; 23-Baffle plate; 231-Mounting plate; 24-Fixing groove; 25-Fixing rod; 26-Pressure plate; 27-Vertical displacement sensor; 28-Secondary electromagnet; 29-Horizontal displacement sensor; 211-Support rod; 212-Clamping plate; 3-Protective component; 31-Mounting block; 32-Mounting groove; 321- Limiting groove; 33-Moving block; 331-Threaded hole; 332-Limiting block; 333-Roller; 4-Drive assembly; 41-Rotating rod; 411-Worm gear; 412-Internal hexagonal socket; 413-Bearing seat; 42-Threaded rod; 421-Worm gear; 5-Heat dissipation assembly; 51-Connecting rod; 52-Heat dissipation fan; 6-Dust shielding assembly; 61-Dust shielding plate; 611-Ventilation hole; 62-Clamping block; 621-Extrusion slope; 622-Pull block; 63-Brush. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] See Figure 1 Only Figure 3 As shown, a two-plate sliding foot structure with strong magnetic levitation includes a slide rail 1 and a sliding foot 2. A main magnet 11 is provided at the downward-facing end of the slide rail 1, and a main electromagnet 21 is provided on the sliding foot 2. The main electromagnet 21 is located below the main magnet 11. The structure also includes a protective component 3, which includes several mounting blocks 31. The mounting blocks 31 are respectively provided at the lower ends of the four corners of the sliding foot 2. Each mounting block 31 has a mounting groove 32 at its lower end. A moving block 33 is movably mounted in the mounting groove 32. A driving component 4 is provided above the moving block 33 to drive the moving block 33 to move.

[0031] In the specific working state, the two plates are installed on the sliding foot 2. When it is necessary to start installing the sliding foot 2, the drive device is first driven to drive the moving block 33. The moving block 33 moves downward along the mounting groove 32 in the mounting block 31. When it moves to a certain position, the drive device is stopped and the sliding foot 2 is installed on the slide rail 1. At this time, with the support of the moving block 33, the sliding foot 2 is at a certain height from the ground. The main magnet 11 and the main electromagnet 21 do not collide and the magnet will not be damaged during installation. When slide foot 2 is used, the main electromagnet 21 starts operating. An attraction occurs between the main magnet 11 and the main electromagnet 21, attracting slide foot 2 and causing it to suspend on the slide rail 1. During this operation, there is no friction on slide foot 2, allowing for continuous use. However, if the main electromagnet 21 fails or stops operating, the attraction between the main magnet 11 and the main electromagnet 21 ceases. Under the pressure of the second plate, slide foot 2 moves downwards. After moving a certain distance, the moving block 33 contacts the slide rail 1 first, preventing slide foot 2 from moving further downwards. This prevents collision between the main magnet 11 and the main electromagnet 21, protecting both. Furthermore, the support rod 211 provides preemptive support, reducing the descent distance of slide foot 2 and consequently the descent distance of the second plate, thus protecting it as well. Each of the four mounting blocks 31 is equipped with a movable block 33, which makes the support more stable.

[0032] By setting the moving block 33, when the moving block 33 contacts the slide rail 1, the main magnet 11 and the main electromagnet 21 will not collide, which facilitates installation. Furthermore, when the main electromagnet 21 stops running, the sliding foot 2 is supported in time, protecting the main electromagnet 21 and the main magnet 11, and also reducing the falling distance of the two plates, thus protecting the two plates.

[0033] See Figure 1 , Figure 4 and Figure 5 As shown, the drive assembly 4 includes a rotating rod 41 and a threaded rod 42, and the upper end of the moving block 33 is provided with a threaded hole 331; Two rotating rods 41 are provided, each rotating rod 41 passing through the sliding foot 2, and two worm gears 411 are sleeved on the rotating rods 41. The threaded rod 42 is provided in four parts. The upper end of the threaded rod 42 is provided with a worm wheel 421. The worm wheel 421 and the worm 411 mesh with each other in a one-to-one correspondence. The end of the threaded rod 42 away from the worm wheel 421 is provided in the threaded hole 331. The worm wheel 421 can drive the threaded rod 42 to rotate. Limiting blocks 332 are also provided on both vertical sides of the movable block 33, and a limiting groove 321 that cooperates with the limiting block 332 is provided in the mounting groove 32.

[0034] The two rotating rods 41 are set along the direction of movement of the sliding foot 2, or perpendicular to the direction of movement of the sliding foot 2; The distance between the main electromagnet 21 and the main magnet 11 varies depending on the working environment. In order to reduce the falling distance of the sliding foot 2, the moving block 33 needs to be adjusted. When it is necessary to adjust the moving block 33, first rotate the rotating rod 41. The rotation of the rotating rod 41 drives the two worm gears 411 to rotate, and the rotation of the two worm gears 411 drives the two worm wheels 421 to rotate. The rotation of the worm wheels 421 causes the two threaded rods 42 on this side to start rotating. The rotation of the threaded rods 42 causes the moving block 33 to start moving. Adjust the height of the moving block 33 according to the required requirements. The use of the limiting block 332 and the limiting groove 321 ensures that the moving block 33 will only move in a straight line. And the limiting groove 321 does not penetrate the mounting groove 32, so it ensures that the moving block 33 will not fall. After the adjustment is completed, adjust the next rotating rod 41 until all the moving blocks 33 are adjusted. By setting a rotating rod 41 and a threaded rod 42, which are connected by a worm gear 421 and a worm 411, the height of the moving block 33 can be adjusted in one direction, ensuring the stability of the moving block 33. Furthermore, by raising or lowering the moving block 33, the main electromagnet 21, the main magnet 11, and the second plate can be effectively protected when facing different suspension heights.

[0035] See Figure 4 and Figure 6 As shown, the drive assembly 4 also includes a bearing seat 413, which is disposed near both ends of the rotating rod 41. The end faces of both ends of the rotating rod 41 are also provided with internal hexagonal sockets 412.

[0036] When it is necessary to rotate the rotating rod 41, the rotating rod 41 is rotated by the hexagonal screw. After the rotation is finished, the hexagonal screw can be retracted without affecting the movement of the sliding foot 2, preventing the hexagonal screw from colliding. Furthermore, the bearing seat 413 makes the rotation easier.

[0037] See Figure 4 and Figure 6 As shown, each of the four corners of the sliding foot 2 is provided with an installation port 22. The worm gear 421 and worm 411 are disposed in the installation port 22. A baffle plate 23 is provided on the outside of the installation port 22. An installation plate 231 is provided on the vertical side of the baffle plate 23. A fixing groove 24 that cooperates with the installation plate 231 is provided on the installation port 22. A fixing rod 25 is provided above the fixing groove 24. A pressure plate 26 is rotatably disposed on the fixing rod 25. The pressure plate 26 can abut against the end of the installation plate 231 near the outside.

[0038] The baffle plate 23 has a through hole for the rotating rod 41 to pass through. The worm gear 421 and worm 411 are relatively easy to damage as transmission components. By setting the baffle plate 23, when it is necessary to inspect or lubricate the worm gear 421 and worm 411, the pressure plate 26 is rotated until it is no longer in contact with the mounting plate 231. At this time, the mounting plate 231 can move outward and leave the fixing groove 24. The baffle plate 23 is disengaged from the mounting opening 22, and then the worm gear 421 and worm 411 can be inspected and lubricated. When it is necessary to reinstall the baffle plate 23, the mounting plate 231 on the baffle plate 23 is snapped into the fixing groove 24, and then the pressure plate 26 is rotated. The pressure plate 26 abuts against the mounting plate 231, so that the baffle plate 23 is installed in the mounting opening 22. It is simple and quick.

[0039] By using the baffle plate 23 and the pressure plate 26, the baffle plate 23 normally blocks the influence of external debris piled up on the worm gear 421 and worm 411. When disassembly is required, the baffle plate 23 can be removed by simply rotating the pressure plate 26. The disassembly is simple and quick, which makes it easy to inspect the worm gear 421 and worm 411.

[0040] See Figure 2 and Figure 3 As shown, the lower end of the moving block 33 is also provided with a roller 333. The rolling direction of the roller 333 is the same as that of the sliding foot 2. The slide rail 1 is provided with a sliding groove 12, which cooperates with the roller 333.

[0041] In normal operation, roller 333 and slide 12 do not contact each other. When installing slide 2, the cooperation between roller 333 and slide 12 makes installation more convenient. If the main electromagnet 21 is damaged during operation, slide 2 falls down, and roller 333 and slide 12 come into contact. Without collision between the main magnet 11 and the main electromagnet 21, the movement of the two plates can continue to be relatively smooth, supporting the completion of this workflow. The height of roller 333 can be adjusted by rotating the rotating rod 41, so that slide 2 can be directly supported by roller 333, thus temporarily completing the subsequent work. After the work is completed, the main electromagnet 21 can be repaired, improving work efficiency.

[0042] See Figure 2 , Figure 3 and Figure 7 As shown, the main electromagnet 21 is composed of several units, and vertical displacement sensors 27 for detecting the vertical height of the sliding foot 2 are provided at the four corners of the sliding foot 2.

[0043] The main electromagnet 21 is set up with several units. When it starts running, the main electromagnet 21 lifts the sliding foot 2 and the second plate by attractive force. However, the sliding foot 2 is not stably set at the center of gravity of the second plate, so the front and rear ends of the sliding foot 2 receive different forces. Therefore, the main electromagnet 21 at different positions needs to provide different attractive forces. By setting up multiple main electromagnets 21 and vertical displacement sensors 27 at the four corners, the vertical displacement sensors 27 detect the vertical height at different positions, and then the main electromagnet 21 of each unit provides different attractive forces, thereby stably lifting the sliding foot 2 horizontally. Furthermore, by setting up several main electromagnets 21, even if one main electromagnet 21 is damaged, the remaining main electromagnets 21 can still provide support for the second plate to a certain extent by adjusting the output power. Even if the second plate cannot be fully lifted, the friction between the sliding foot 2 and the slide rail 1 can be reduced.

[0044] See Figure 3 As shown, two auxiliary electromagnets 28 are arranged on the inner side of the sliding foot 2 along the moving direction of the sliding foot 2. The auxiliary electromagnets 28 are mirror images arranged on both sides of the slide rail 1. The slide rail 1 is provided with auxiliary magnets 13 that cooperate with the auxiliary electromagnets 28. A horizontal displacement sensor 29 for detecting the horizontal distance between the sliding foot 2 and the slide rail 1 is also provided on the inner side of the sliding foot 2.

[0045] By setting up a horizontal displacement sensor 29, a secondary magnet 13, and a secondary electromagnet 28, the repulsive force between the secondary magnet 13 and the secondary electromagnet 28, as well as the detection by the horizontal displacement sensor 29, keeps the position of the sliding foot 2 perpendicular to the direction of movement stable, thereby further reducing the collision between the sliding foot 2 and the slide rail 1. Even if one secondary electromagnet 28 is damaged, by changing the magnetic field of the other secondary electromagnet 28, the secondary electromagnet 28 and the secondary magnet 13 can have both repulsive and attractive forces, thus maintaining the horizontal stability of the sliding foot 2.

[0046] See Figure 1 , Figure 3 and Figure 8 As shown, the structure also includes a heat dissipation component 5, which includes a connecting rod 51 and a cooling fan 52; The connecting rods 51 are configured in two pairs, and the two pairs of connecting rods 51 are respectively set at the front and rear ends of the sliding foot 2 along the moving direction. Each pair of connecting rods 51 is mirror-set on both sides of the slide rail 1. The cooling fan 52 is located at the end of the connecting rod 51 away from the sliding foot 2. The cooling fan 52 is tilted, and the end of the cooling fan 52 facing the sliding foot 2 is aligned with the main magnet 11 and the main electromagnet 21.

[0047] When the sliding foot 2 starts to move, the main magnet 11 and the main electromagnet 21 continue to operate. The main electromagnet 21 generates a lot of heat. If it is not cooled in time, the high temperature will affect the use of the main electromagnet 21. By setting a connecting rod 51, a cooling fan 52 is set at the end of the connecting rod 51 away from the sliding foot 2. The cooling fan 52 is tilted towards the main magnet 11 and the main electromagnet 21. The air outlet of the cooling fan 52 at the front end of the sliding foot 2's movement direction faces the sliding foot 2, and the air outlet of the cooling fan 52 at the rear end of the sliding foot 2's movement direction is away from the sliding foot 2. This can effectively blow out the heat generated by the main electromagnet 21, reduce the heat on the main electromagnet 21, and ensure the effective operating time of the main electromagnet 21.

[0048] See Figure 1 and Figure 9 As shown, the structure also includes a dust-proof assembly 6, which includes a dust-proof plate 61. The dust-proof plate 61 is disposed at both ends of the sliding foot 2 along the moving direction. The dust-proof plate 61 is installed on the sliding foot 2 by bolts, and the dust-proof plate 61 is provided with several ventilation holes 611.

[0049] The dust cover 61 is provided with through holes to facilitate the passage of the slide rail 1. When the sliding foot 2 starts to move, if some debris enters between the main electromagnet 21 and the main magnet 11, it may affect the attraction between the main magnet 11 and the main electromagnet 21, thereby affecting the vertical displacement of the sliding foot 2. By setting the dust cover 61, some debris can be effectively blocked, and the ventilation hole 611 does not affect the cooling fan 52 for cooling the main electromagnet 21.

[0050] See Figure 1 , Figure 8 and Figure 10 As shown, the dust-proof assembly 6 also includes a brush 63 and a clamping block 62; The sliding foot 2 is also provided with support rods 211 at both ends along the direction of movement, and two clamping plates 212 are provided at the end of the support rods 211 away from the sliding foot 2; The brush 63 is disposed between two clamping plates 212, the brush 63 clamps the clamping plates, and the working end of the brush 63 abuts against the slide rail 1. The clamping block 62 is disposed on the clamping plate 212 and can clamp the clamping plate 212. The clamping block 62 is provided with a pressing inclined surface 621 at one end facing the clamping plate 212, and a pulling block 622 is provided on the outside of the clamping plate to facilitate pulling the clamping plate.

[0051] The dust cover 61 blocks the debris. Some debris falls onto the upper end of the slide rail 1. At this time, it is squeezed against the dust cover 61 and may be squeezed into the interior of the slide foot 2, thus affecting the use of the main electromagnet 21, or getting stuck between the dust cover 61 and the slide rail 1, causing damage. The brush 63 is used to clean the slide rail 1 and remove debris from it. When the brush 63 needs to be installed, one end of the brush 63 is first clamped between the two clamping plates 212. The clamping plates 212 clamp the brush 63, and the working end of the brush 63 is in contact with the slide rail 1. Then, the pressing slope 621 of the clamping block 62 is turned towards the clamping plate 212. Guided by the pressing slope 621, the clamping plate 212 further clamps the brush 63. When it needs to be replaced, the clamping block 62 is first removed directly by the pull block 622 on the clamping block 62, and then the brush 63 is removed for replacement. It is simple and quick.

[0052] This application sets up a moving block 33. When the moving block 33 contacts the slide rail 1, the main magnet 11 and the main electromagnet 21 do not collide, which facilitates installation. Furthermore, when the main electromagnet 21 stops running, it promptly supports the sliding foot 2, protecting the main electromagnet 21 and the main magnet 11, and also reducing the falling distance of the two plates, thus protecting the two plates.

[0053] By setting a rotating rod 41 and a threaded rod 42, which are connected by a worm gear 421 and a worm 411, the height of the moving block 33 can be adjusted in one direction, ensuring the stability of the moving block 33. Furthermore, by raising or lowering the moving block 33, the main electromagnet 21, the main magnet 11, and the second plate can be effectively protected when facing different suspension heights.

[0054] By setting a connecting rod 51, a cooling fan 52 is provided at the end of the connecting rod 51 away from the sliding foot 2. The cooling fan 52 is tilted towards the main magnet 11 and the main electromagnet 21. The air outlet of the cooling fan 52 at the front end of the sliding foot 2 in the direction of movement faces the sliding foot 2, and the air outlet of the cooling fan 52 at the rear end of the sliding foot 2 in the direction of movement is away from the sliding foot 2. This can effectively blow out the heat generated by the main electromagnet 21, reduce the heat on the main electromagnet 21, and ensure the effective operating time of the main electromagnet 21.

[0055] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A strong magnetic levitation two-plate sliding foot structure, comprising a slide rail (1) and a sliding foot (2), wherein a main magnet (11) is provided at the downward-facing end of the slide rail (1), and a main electromagnet (21) is provided on the sliding foot (2), the main electromagnet (21) being positioned below the main magnet (11), characterized in that, The structure also includes a protective component (3), which includes several mounting blocks (31). The mounting blocks (31) are respectively located at the lower ends of the four corners of the sliding foot (2). Each mounting block (31) has a mounting groove (32) at its lower end. A moving block (33) is movably disposed in the mounting groove (32). A driving component (4) for driving the moving block (33) to move is disposed above the moving block (33). The drive assembly (4) includes a rotating rod (41) and a threaded rod (42), and the upper end of the moving block (33) is provided with a threaded hole (331). The rotating rod (41) is configured as two, the rotating rod (41) passes through the sliding foot (2), and two worm gears (411) are sleeved on the rotating rod (41). The threaded rods (42) are configured as four, and the upper end of the threaded rods (42) is provided with a worm wheel (421). The worm wheel (421) and the worm (411) mesh in a one-to-one correspondence. The end of the threaded rod (42) away from the worm wheel (421) is provided in the threaded hole (331). The worm wheel (421) can drive the threaded rod (42) to rotate. Limiting blocks (332) are also provided on both vertical sides of the movable block (33), and a limiting groove (321) that cooperates with the limiting block (332) is provided in the mounting groove (32). The drive assembly (4) also includes a bearing housing (413), which is located near both ends of the rotating rod (41), and the end faces of both ends of the rotating rod (41) are also provided with internal hexagonal sockets (412). The sliding foot (2) has an installation port (22) at each of its four corners. The worm gear (421) and worm (411) are installed in the installation port (22). A baffle plate (23) is provided on the outside of the installation port (22). An installation plate (231) is provided on the vertical side of the baffle plate (23). A fixing groove (24) that cooperates with the installation plate (231) is provided on the installation port (22). A fixing rod (25) is provided above the fixing groove (24). A pressure plate (26) is rotatably provided on the fixing rod (25). The pressure plate (26) can abut against the end of the installation plate (231) near the outside.

2. The strong magnetic levitation two-plate sliding foot structure according to claim 1, characterized in that, The lower end of the moving block (33) is also provided with a roller (333), the rolling direction of the roller (333) is the same as that of the sliding foot (2), and a groove (12) is provided on the slide rail (1), the groove (12) and the roller (333) cooperate with each other.

3. The strong magnetic levitation two-plate sliding foot structure according to claim 1, characterized in that, The main electromagnet (21) is composed of several units, and vertical displacement sensors (27) for detecting the vertical height of the sliding foot (2) are provided at the four corners of the sliding foot (2).

4. The strong magnetic levitation two-plate sliding foot structure according to claim 1, characterized in that, Two auxiliary electromagnets (28) are arranged on the inner side of the sliding foot (2) along the moving direction of the sliding foot (2). The auxiliary electromagnets (28) are mirrored on both sides of the slide rail (1). The slide rail (1) is provided with auxiliary magnets (13) that cooperate with the auxiliary electromagnets (28). A horizontal displacement sensor (29) for detecting the horizontal distance between the sliding foot (2) and the slide rail (1) is also provided on the inner side of the sliding foot (2).

5. The strong magnetic levitation two-plate sliding foot structure according to claim 1, characterized in that, The structure also includes a heat dissipation component (5), which includes a connecting rod (51) and a cooling fan (52). The connecting rods (51) are configured in two pairs, and the two pairs of connecting rods (51) are respectively set at the front and rear ends of the sliding foot (2) along the moving direction. Each pair of connecting rods (51) is set in a mirror image on both sides of the slide rail (1). The cooling fan (52) is located at the end of the connecting rod (51) away from the sliding foot (2). The cooling fan (52) is tilted and the end of the cooling fan (52) facing the sliding foot (2) is aligned with the main magnet (11) and the main electromagnet (21).

6. The strong magnetic levitation two-plate sliding foot structure according to claim 5, characterized in that, The structure also includes a dust-proof assembly (6), which includes a dust-proof plate (61). The dust-proof plate (61) is disposed at the front and rear ends of the sliding foot (2) along the moving direction. The dust-proof plate (61) is installed on the sliding foot (2) by bolts. The dust-proof plate (61) is provided with several ventilation holes (611).

7. The strong magnetic levitation two-plate sliding foot structure according to claim 6, characterized in that, The dust-proof assembly (6) also includes a brush (63) and a clamp (62). The sliding foot (2) is also provided with support rods (211) at both ends along the direction of movement, and two clamping plates (212) are provided at the end of the support rod (211) away from the sliding foot (2). The brush (63) is positioned between two clamping plates (212), which clamp the brush (63) and the working end of the brush (63) abuts against the slide rail (1). The clamping block (62) is disposed on the clamping plate (212). The clamping block (62) can clamp the clamping plate (212). The end of the clamping block (62) facing the clamping plate (212) is provided with a pressing slope (621). The outside of the clamping block (62) is provided with a pull block (622) to facilitate pulling the clamping block (62).

Images