Cooling device based on linear motor and cooling method thereof

Abstract

The invention relates to the technical field of linear motor cooling, and discloses a cooling device based on a linear motor and a cooling method thereof.The cooling device comprises a sliding rail plate, a machine shell is arranged above the sliding rail plate, a top protection plate is arranged at the top end of the machine shell, side protection plates are arranged on the two sides of the top protection plate, and a cooling mechanism is arranged at the front end of the interior of the machine shell; a moisture-proof mechanism is arranged at the top end of the cooling mechanism, a lubricating mechanism is arranged on the rear side of the interior of the machine shell, a plurality of permanent magnet blocks are distributed on the upper surface of a sliding rail plate in an equidistant array mode, guide rails are arranged on the two sides of each permanent magnet block, the cooling mechanism comprises a liquid driving end, and a rotating shaft is rotationally connected to the interior of the liquid driving end; according to the invention, heat generated in the casing is taken away through flowing of liquid in the inner liquid pipe and the outer liquid pipe, so that the situation that the distance measurement precision is affected by temperature rise of the built-in grating and the grating encoder due to overheating of the interior of the casing is avoided, and the overall movement precision of the casing is prevented from being affected.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motor cooling, and in particular to a cooling device based on a linear motor and a cooling method thereof. Background Art

[0002] The cooling device of the linear motor refers to the use of the motion principle of the linear motor combined with thermal management technology to achieve the purpose of heat dissipation and temperature control of the linear motor and its system. Linear motors are widely used in high-speed transportation, precision processing, automated production lines and other fields. However, due to the large amount of heat generated during operation, especially in high-power and long-term operation, the cooling problem becomes particularly important. With the expansion of the application field of linear motors and the development of technology, cooling solutions are becoming more and more diversified and efficient. In practical applications, the appropriate cooling method is usually selected based on the working environment, power requirements and heat dissipation performance of the linear motor.

[0003] The patent with announcement number CN212163083U discloses a novel cooling device for linear motor, which belongs to the technical field of cooling device, including a rotor, a stator is slidably connected to the top of the rotor, the top of the stator is sprayed with thermal conductive silicone grease and is connected to the thermal conductive silicone sheet through the thermal conductive silicone grease, the top of the thermal conductive silicone sheet is connected to the serpentine tube through the thermal conductive silicone grease, the serpentine tube is detachably connected to the top of the stator through a fixed frame, the fixed frame includes a U-shaped frame and a support rod, and the top of the support rod is welded with a U-shaped frame. The cooling device of the linear motor of the utility model can play the role of insulation, shock absorption and sealing without affecting its heat dissipation, so as to prevent the serpentine tube and the stator from being damaged by rigid collision. The cooling device of the linear motor of the patent is easy to install and disassemble, and saves costs. However, the patent still has the problem that internal overheating causes the built-in grating and grating encoder to heat up and affect the distance measurement accuracy. Therefore, a cooling device based on a linear motor and a cooling method thereof are proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cooling device based on a linear motor and a cooling method thereof in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a cooling device based on a linear motor, comprising a slide rail plate, a housing is arranged above the slide rail plate, a top guard plate is arranged at the top of the housing, side guard plates are arranged on both sides of the top guard plate, a cooling mechanism is arranged at the front end of the housing, a moisture-proof mechanism is arranged at the top of the cooling mechanism, a lubrication mechanism is arranged at the rear side of the housing, a plurality of permanent magnet blocks are arranged in an equidistant array on the upper surface of the slide rail plate, and guide rails are arranged on both sides of the permanent magnet blocks;

[0006] The cooling mechanism includes a liquid-driving end, the internal rotation of the liquid-driving end is connected to a rotating shaft, both ends of the rotating shaft are fixedly connected to a magnetic wheel, the outer surface of the magnetic wheel is equidistantly arrayed with a plurality of magnetic blocks, the outer surface of the liquid-driving end is provided with a threading groove, the right inner wall of the liquid-driving end is rotationally connected to a ratchet, a resistance sheet is arranged above the ratchet, each side of the side guard plate away from the casing is fixedly connected to an external liquid tube, the bottom end of the external liquid tube is fixedly connected to an internal liquid tube, the middle of the inner wall of the liquid-driving end is fixedly connected to a liquid chamber partition, the side of the liquid chamber partition is provided with a liquid groove, the front side of the liquid-driving end is fixedly connected to left and right infusion ports, and the liquid-driving end is rotationally connected to a flip liquid plate.

[0007] According to the above technical solution, the two side guard plates are respectively fitted with the two sides of the casing, the guide rail is fixedly connected to the slide rail plate, the magnetic poles of the two adjacent magnetic blocks are opposite, the resistance plate is fixedly connected to the liquid drive end, and the top end of the external liquid tube on the right side is connected to the right infusion port.

[0008] According to the above technical scheme, the top end of the external liquid tube on the left side is connected to the left infusion port, and the left and right sides of the liquid chamber partition are respectively provided with a left liquid chamber and a right liquid chamber, and the flip liquid plate is fixedly connected to the rotating shaft, and the built-in grating and grating encoder cooperate with the electromagnet in the casing to change the magnetic poles, so that the magnetic poles generated by the electromagnet are the same as the magnetic poles of the permanent magnet block to generate repulsive force, and when the casing is pushed to move along the guide rail by generating repulsive force, the side guard plate on the casing slides along the guide rail, and the liquid-driving end moves with the casing, and the movement of the liquid-driving end drives the magnetic wheel connected to the rotating shaft to move, and the multiple magnetic blocks with alternating magnetic poles on the magnetic wheel generate magnetic force to attract the permanent magnet blocks at different positions on the slide plate, so that the magnetic wheel is driven by the magnetic pole repulsion of the permanent magnet block. The connected rotating shaft is driven to rotate by the lower drive, and the rotation of the rotating shaft drives the flip liquid plate to rotate, and the left liquid chamber of the liquid driving end is discharged into the right liquid chamber through the liquid groove on the liquid chamber partition through the rotation of the flip liquid plate, and then the liquid is pushed to be discharged from the right infusion port to the external liquid tube through the flip liquid plate in the right liquid chamber, so that the external liquid tube dissipates the heat of the liquid in the external liquid tube through the fins on the side of the side guard plate, so that the fins outside the side guard plate move with the shell and contact with the flowing air so that the heat of the liquid in the external liquid tube is taken away by the flowing air, and then the liquid in the external liquid tube is passed into the connected internal liquid tube, and the liquid in the internal liquid tube absorbs the heat generated by the electromagnet and other built-in components, and then flows into the external liquid tube on the left, and flows into the left infusion port through the left external liquid tube to the inside of the liquid driving end.

[0009] According to the above technical scheme, the moisture-proof mechanism includes a moisture-proof baffle, the upper surface of the moisture-proof baffle is slidably connected with a vertical short rod, the lower part of the liquid-displacing end is provided with a filter screen, the rear bottom end of the moisture-proof baffle is fixedly connected with a threading end, the rear side of the threading end is threadedly connected with a sealing ring, the outer side surface of the vertical short rod is slidably connected with a top slide plate, the right side of the top slide plate is provided with a protruding handle, the rear side surface of the top slide plate is fixedly connected with an inclined groove rod, and the rear side surface of the inclined groove rod is slidably connected with an inclined groove push rod.

[0010] According to the above technical solution, the short vertical rod is fixedly connected to the liquid-displacing end, the protruding handle is fixedly connected to the rotating shaft, the threading end corresponds to the position of the threading groove, and a threading hole is opened on the front side of the housing.

[0011] According to the above technical solution, the overall cross-sectional shape of the moisture-proof baffle is L-shaped, the bottom end of the moisture-proof baffle is fixedly connected to the filter screen, and the top end of the moisture-proof baffle is fixedly connected to the top side of the casing. When the rotating shaft rotates, the connected convex handle is driven to rotate at the same time, and the convex handle moves upward to lift the contact position of the top slide plate upward, so that the top slide plate slides upward along the vertical short rod to squeeze the moisture-proof baffle. At the same time, the top slide plate squeezes the moisture-proof baffle upward, causing the middle part of the top surface of the moisture-proof baffle to deform upward and bend into an arc. As the convex handle continues to rotate, the connected convex handle no longer supports the top slide plate to move upward, and the deformed moisture-proof baffle releases the elastic force, pushing the contacting top slide plate along the vertical short rod. The short vertical rod is reset, and the air in the moisture-proof baffle and the filter end shell is discharged from the threading hole on the front side of the casing, so that the moisture adsorbed by the moisture-proof baffle is pushed out of the threading hole as the moisture-proof baffle is reset, thereby preventing moisture from staying inside for a long time and corroding or maintaining copper wire or other metal parts and causing malfunctions. At the same time, the top slide plate is used to move upward to drive the connected inclined slot rod to push the inclined slot push rod to slide along the connection of the filter, so that the inclined slot push rod pushes the rear part of the moisture-proof baffle away from the position where the filter is fitted, and the filter is slapped after the moisture-proof baffle is reset to prevent the filter from being blocked and affecting the circulation of dry air.

[0012] According to the above technical solution, the lubrication mechanism includes a swing handle, a long groove is provided on the rear side of the swing handle, a cross bar is slidably connected to the inner side of the long groove, a piston is fixedly connected to the rear side of the cross bar, an infusion tube is fixedly connected to the side of the piston, an end of the infusion tube away from the piston is fixedly connected to a liquid storage end, a pressure plate is hingedly connected to the top of the liquid storage end, a pressure push rod is provided above the pressure plate, two vertical pressure rods are provided below the pressure plate, a pressure plug plate is fixedly connected to the bottom end of the vertical pressure rod, an upper through pipe is provided between the two vertical pressure rods, a one-way rubber film is provided below the upper through pipe, a rubber plug is provided below the pressure plug plate, and a drain pipe is fixedly connected to the front end of the piston.

[0013] According to the above technical solution, the long groove is fixedly connected to the casing, a return spring is provided on the outside of the piston, and the two ends of the return spring are respectively fixedly connected to the long groove and the cross bar, the rear end of the piston is fixedly connected to the long groove, and the liquid storage end is fixedly connected to the casing.

[0014] According to the above technical solution, the pressure push rod is fixedly connected to the remaining cross bar, the pressure plate is fixedly connected to the pressure plug plate, the vertical pressure rod is slidably connected to the top of the liquid storage end, and an elastic spring is arranged on the outer surface of the vertical pressure rod, and the two ends of the elastic spring are respectively fixedly connected to the liquid storage end and the pressure plug plate. When the magnetic wheel rotates, it will drive the connected swing handle to rotate, and the rotation of the swing handle will push the cross bar to slide along the pressure plug plate and squeeze the piston, so that the piston shrinks and then squeezes the reset spring to compress, and the movement of the cross bar will drive the connected pressure push rod to move and squeeze the pressure plate to flip, so that the pressure plate is pressed to push the vertical pressure rod to move downward, and at this time, the elastic spring outside the vertical pressure rod is stretched and pushes the pressure plug plate close to the rubber plug. The one-way film is in a closed state, and the one-way film is in an open state when the pressure plug is upward, allowing the pressure plug to squeeze the air between the pressure plug and the rubber plug. When the air pressure inside the pressure plug and the rubber plug increases, the pressure plug applies pressure to the rubber plug again according to the above steps. At this time, the air pressure will push the rubber plug downward to squeeze the internal space of the liquid storage end, allowing the internal liquid of the liquid storage end to enter the piston in one direction along the connected infusion tube under pressure, and after the piston is compressed and contracted, it is discharged in one direction through the connected discharge tube to the contact position of the guide rail and the side guard plate, thereby lubricating the contact position of the guide rail and the side guard plate to prevent excessive wear of the side guard plate or the guide rail and affect the movement accuracy.

[0015] A cooling method for a cooling device based on a linear motor, comprising:

[0016] S1: The built-in grating and grating encoder cooperate with the electromagnet in the casing to change the magnetic poles, so that the magnetic poles generated by the electromagnet are the same as the magnetic poles of the permanent magnet block to generate repulsion. When the casing is pushed along the guide rail by the repulsive force, the side guard plate on the casing slides along the guide rail, and the liquid-driving end moves together with the casing. The movement of the liquid-driving end drives the magnetic wheel connected to the shaft to move, and the magnetic blocks with alternating magnetic poles on the magnetic wheel generate magnetic force to attract the permanent magnet blocks at different positions on the slide plate, so that the magnetic wheel drives the connected shaft to rotate under the repulsive force of the magnetic poles of the permanent magnet block, and drives the flip liquid plate to rotate through the rotation of the shaft;

[0017] S2: The liquid chamber on the left side of the liquid drive end is rotated to discharge into the right liquid chamber through the liquid groove on the liquid chamber partition, and then the liquid is pushed to be discharged from the right infusion port to the external liquid tube through the liquid plate in ...

[0018] S3: Then the liquid in the outer liquid tube is passed into the connected inner liquid tube, and the liquid in the inner liquid tube absorbs the heat generated by the electromagnet and other built-in components, and then flows into the outer liquid tube on the left, and flows into the left infusion port through the left outer liquid tube to the inside of the liquid drive end. The heat generated in the casing is taken away by the flow of liquid in the inner liquid tube and the outer liquid tube, so as to avoid overheating inside the casing, causing the temperature of the built-in grating and grating encoder to affect the distance measurement accuracy, and avoid affecting the accuracy of the overall movement of the casing;

[0019] S4: When the rotating shaft rotates, the connected convex handle is driven to rotate at the same time. The convex handle moves upward to push up the contact position of the top slide plate, so that the top slide plate slides upward along the vertical short rod to squeeze the moisture-proof baffle. At the same time, the top slide plate squeezes the moisture-proof baffle upward, causing the middle part of the top surface of the moisture-proof baffle to bend upward into an arc. As the convex handle continues to rotate, the connected convex handle no longer pushes the top slide plate to move upward, and the deformed moisture-proof baffle releases its elastic force, pushing the contacting top slide plate to return to its original position along the vertical short rod, and discharges the air in the moisture-proof baffle and the filter end shell from the threading hole on the front side of the shell;

[0020] S5: The top slide plate is used to move upward to drive the connected inclined slot rod to push the inclined slot push rod to slide along the connection of the filter screen, so that the inclined slot push rod pushes the moisture-proof baffle at the rear part away from the position where the filter screen is attached, and after the moisture-proof baffle is reset, it hits the filter screen, thereby preventing the filter screen from being blocked and affecting the circulation of dry air;

[0021] S6: When the magnetic wheel rotates, it drives the connected swing handle to rotate. The rotation of the swing handle pushes the crossbar to slide along the pressure plug plate and squeeze the piston. After the piston contracts, the return spring is compressed. The movement of the crossbar drives the connected pressure push rod to move and squeeze the pressure plate to flip. The pressure on the pressure plate pushes the vertical pressure rod downward.

[0022] S7: At this time, the elastic spring outside the vertical pressure rod is stretched and pushes the pressure plug plate close to the rubber plug, while the one-way film is in a closed state. When the pressure plug plate is upward, the one-way film is in an open state, allowing the pressure plug plate to squeeze the air between the pressure plug plate and the rubber plug. When the air pressure inside the pressure plug plate and the rubber plug increases, the pressure plug plate presses the rubber plug again. At this time, the air pressure pushes the rubber plug downward to squeeze the internal space of the liquid storage end;

[0023] S8: Allow the liquid inside the liquid storage end to enter the piston in one direction along the connected infusion tube under the action of pressure, and after the piston is compressed and contracted, it is discharged in one direction through the connected discharge tube to the contact position between the guide rail and the side guard plate, thereby lubricating the contact position between the guide rail and the side guard plate, preventing the side guard plate or the guide rail from excessive wear and affecting the movement accuracy, and preventing the guide rail from being exposed to the air and corroding and rusting, thereby affecting the movement of the side guard plate.

[0024] The present invention adopts the above technical solution to bring the following beneficial effects:

[0025] 1. The cooling device based on the linear motor and the cooling method thereof absorb the heat generated by the electromagnet and other built-in components through the liquid in the inner liquid tube and then flow into the outer liquid tube on the left, and flow into the left infusion port through the left outer liquid tube to the inside of the liquid drive end. The heat generated in the casing is taken away by the flow of liquid in the inner liquid tube and the outer liquid tube, so as to avoid overheating inside the casing, causing the built-in grating and grating encoder to heat up and affect the distance measurement accuracy, and avoid affecting the accuracy of the overall movement of the casing.

[0026] 2. The linear motor-based cooling device and cooling method can push the air out of the threading hole to discharge the moisture absorbed by the moisture-proof baffle after the moisture-proof baffle is reset, thereby preventing the moisture from staying inside for a long time to corrode or maintain the copper wire or other metal parts and cause malfunctions. At the same time, the top slide plate is used to move upward to drive the connected inclined slot rod to push the inclined slot push rod to slide along the connection of the filter, so that the inclined slot push rod pushes the rear part of the moisture-proof baffle away from the position where the filter is fitted, and the filter is slapped after the moisture-proof baffle is reset, thereby preventing the filter from being blocked and affecting the circulation of dry air.

[0027] 3. The cooling device based on the linear motor and the cooling method thereof allow the liquid inside the liquid storage end to enter the piston in one direction along the connected infusion tube under the action of pressure, and after the piston is compressed and contracted, it is discharged in one direction through the connected discharge tube to the contact position between the guide rail and the side guard plate, thereby lubricating the contact position between the guide rail and the side guard plate, preventing the side guard plate or the guide rail from excessive wear and affecting the movement accuracy, and preventing the guide rail from being exposed to the air and corroding and rusting and affecting the movement of the side guard plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall rear-view stereoscopic structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the casing of the present invention;

[0031] Figure 4 It is a schematic diagram of the cooling mechanism structure of the present invention;

[0032] Figure 5 For the present invention Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0033] Figure 6 This is a schematic diagram of the internal structure of the liquid-displacing end of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the moisture-proof mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of the top slide connection structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the lubrication mechanism of the present invention;

[0037] Fig.10 It is a schematic diagram of the internal structure of the liquid storage end of the present invention.

[0038] In the figure: 1, slide rail plate; 2, top guard plate; 3, side guard plate; 4, housing; 5, cooling mechanism; 51, liquid drive end; 52, rotating shaft; 53, magnetic wheel; 54, magnetic block; 55, threading groove; 56, ratchet; 57, resistance plate; 58, external liquid tube; 59, internal liquid tube; 510, liquid chamber partition; 511, liquid trough; 512, infusion port; 513, flip liquid plate; 6, moisture-proof mechanism; 61, moisture-proof partition; 62, filter; 63, vertical short rod; 64, Threading end; 65, sealing ring; 66, top slide plate; 67, convex handle; 68, inclined groove rod; 69, inclined groove push rod; 7, lubrication mechanism; 71, swing handle; 72, long groove; 73, cross bar; 74, piston; 75, infusion tube; 76, liquid storage end; 77, pressure push rod; 78, pressure plate; 79, discharge tube; 710, vertical pressure rod; 711, upper through pipe; 712, pressure plug plate; 713, one-way film; 714, rubber plug; 8, permanent magnet block; 9, guide rail. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 10 , one embodiment of the present invention is: a cooling device based on a linear motor, comprising a slide plate 1, a housing 4 is arranged above the slide plate 1, a top guard plate 2 is arranged at the top of the housing 4, side guard plates 3 are arranged on both sides of the top guard plate 2, a cooling mechanism 5 is arranged at the front end of the housing 4, a moisture-proof mechanism 6 is arranged at the top of the cooling mechanism 5, a lubrication mechanism 7 is arranged at the rear side of the housing 4, a plurality of permanent magnet blocks 8 are arranged in an equidistant array on the upper surface of the slide plate 1, and guide rails 9 are arranged on both sides of the permanent magnet blocks 8;

[0041] The cooling mechanism 5 includes a liquid-discharging end 51, the interior of the liquid-discharging end 51 is rotatably connected to a rotating shaft 52, both ends of the rotating shaft 52 are fixedly connected to a magnetic wheel 53, the outer surface of the magnetic wheel 53 is equidistantly arrayed with a plurality of magnetic blocks 54, the outer surface of the liquid-discharging end 51 is provided with a threading groove 55, the right inner wall of the liquid-discharging end 51 is rotatably connected to a ratchet 56, a resistance sheet 57 is arranged above the ratchet 56, each side of the side guard plate 3 away from the casing 4 is fixedly connected to an external liquid tube 58, the bottom end of the external liquid tube 58 is fixedly connected to an internal liquid tube 59, the middle of the inner wall of the liquid-discharging end 51 is fixedly connected to a liquid chamber partition 510, the side of the liquid chamber partition 510 is provided with a liquid-passing groove 511, and the front side of the liquid-discharging end 51 is fixedly connected to two left and right infusion ports 51 2, the liquid-displacing end 51 is internally connected with a liquid-turning plate 513, the two side guard plates 3 are respectively fitted with the two sides of the casing 4, the guide rail 9 is fixedly connected to the slide rail plate 1, the magnetic poles of the two adjacent magnetic blocks 54 are opposite, the resistance plate 57 is fixedly connected to the liquid-displacing end 51, the top of the right external liquid tube 58 is connected to the right infusion port 512, the top of the left external liquid tube 58 is connected to the left infusion port 512, the left and right sides of the liquid chamber partition 510 are respectively provided with a left liquid chamber and a right liquid chamber, the liquid-turning plate 513 is fixedly connected to the rotating shaft 52, and the built-in grating and grating encoder cooperate with the electromagnet in the casing 4 to change the magnetic pole, so that the magnetic pole generated by the electromagnet is the same as the magnetic pole of the permanent magnet block 8 to generate a repulsive force, and the casing 4 is pushed along the guide rail 9 by generating a repulsive force. When the machine body 50 is in motion, the side guard plate 3 on the casing 4 slides along the guide rail 9, and the liquid-displacing end 51 moves together with the casing 4. The movement of the liquid-displacing end 51 drives the magnetic wheel 53 connected to the rotating shaft 52 to move, and the magnetic blocks 54 with alternating magnetic poles on the magnetic wheel 53 generate magnetic force to attract the permanent magnet blocks 8 at different positions on the slide plate 1, so that the magnetic wheel 53 drives the connected rotating shaft 52 to rotate under the repulsive force of the magnetic poles of the permanent magnet blocks 8, and drives the flip liquid plate 513 to rotate through the rotation of the rotating shaft 52. Through the rotation of the flip liquid plate 513, the left liquid chamber body of the liquid-displacing end 51 is discharged into the right liquid chamber through the liquid groove 511 on the liquid chamber partition 510, and then the liquid is pushed to be discharged from the right infusion port 512 to the external liquid tube 58 through the flip liquid plate 513 in the right liquid chamber, so that the external The liquid pipe 58 dissipates heat from the liquid in the outer liquid pipe 58 through the fins on the side of the side guard plate 3, so that the fins outside the side guard plate 3 move with the housing 4 and contact the flowing air, so that the heat of the liquid in the outer liquid pipe 58 is taken away by the flowing air, and then the liquid in the outer liquid pipe 58 is passed into the connected inner liquid pipe 59, and the liquid in the inner liquid pipe 59 absorbs the heat generated by the electromagnet and other built-in components, and then flows into the outer liquid pipe 58 on the left, and flows into the left infusion port 512 through the left outer liquid pipe 58 to the inside of the liquid drive end 51, and the heat generated in the housing 4 is taken away by the flow of liquid in the inner liquid pipe 59 and the outer liquid pipe 58, so as to avoid overheating inside the housing 4, which causes the built-in grating and grating encoder to heat up and affect the distance measurement accuracy, and avoid affecting the overall movement accuracy of the housing 4.

[0042] The moisture-proof mechanism 6 includes a moisture-proof baffle 61, a vertical short rod 63 is slidably connected to the upper surface of the moisture-proof baffle 61, a filter screen 62 is provided below the liquid-displacing end 51, a threading end 64 is fixedly connected to the rear bottom end of the moisture-proof baffle 61, a sealing ring 65 is threadedly connected to the rear side of the threading end 64, a top slide 66 is slidably connected to the outer side of the vertical short rod 63, a convex handle 67 is provided on the right side of the top slide 66, an inclined groove rod 68 is fixedly connected to the rear side of the top slide 66, and the inclined groove rod 68 is fixedly connected to the rear side of the top slide 66. The rear side of the housing 4 is slidably connected with an inclined groove push rod 69, the vertical short rod 63 is fixedly connected to the liquid driving end 51, the protruding handle 67 is fixedly connected to the rotating shaft 52, the threading end 64 corresponds to the position of the threading groove 55, and the front side of the housing 4 is provided with a threading hole. The overall cross-sectional shape of the moisture-proof baffle 61 is L-shaped, the bottom end of the moisture-proof baffle 61 is fixedly connected to the filter screen 62, and the top end of the moisture-proof baffle 61 is fixedly connected to the top side of the housing 4. As the protruding handle 67 continues to rotate, the connected protruding handle 67 is no longer pushed up. The top slide plate 66 moves upward, the deformed moisture-proof baffle plate 61 releases its elastic force, pushes the contacting top slide plate 66 to reset along the vertical short rod 63, and discharges the air in the end shell of the moisture-proof baffle plate 61 and the filter screen 62 from the threading hole on the front side of the casing 4, thereby pushing the moisture absorbed by the moisture-proof baffle plate 61 to be discharged from the threading hole after the moisture-proof baffle plate 61 is reset, thereby preventing the moisture from staying inside for a long time to corrode or maintain the copper wire or other metal parts and causing malfunctions. At the same time, the top slide plate The upward movement of 66 drives the connected inclined slot rod 68 to push the inclined slot push rod 69 to slide along the connection with the filter 62, so that the inclined slot push rod 69 pushes the rear part of the moisture-proof baffle 61 away from the position where the filter 62 is attached. After the moisture-proof baffle 61 is restored, it slaps the filter 62 to prevent the filter 62 from being blocked and affecting the circulation of dry air. In addition, the wire passing through the threading hole bypasses the threading slot 55 and passes through the threading end 64, and then tightening the sealing ring 65 can improve the sealing effect of the moisture-proof baffle 61.

[0043] The lubricating mechanism 7 comprises a swing handle 71, a long groove 72 is arranged at the rear side of the swing handle 71, a cross bar 73 is slidably connected to the inner side of the long groove 72, a piston 74 is fixedly connected to the rear side of the cross bar 73, a liquid infusion tube 75 is fixedly connected to the side of the piston 74, a liquid storage end 76 is fixedly connected to the end of the liquid infusion tube 75 away from the piston 74, a pressure plate 78 is hingedly connected to the top of the liquid storage end 76, a pressure push rod 77 is arranged above the pressure plate 78, and two vertical pressure rods 710 are arranged below the pressure plate 78, and the bottom end of the vertical pressure rod 710 is fixedly connected to the bottom end of the vertical pressure rod 710. A pressure plug plate 712 is connected, an upper through pipe 711 is arranged between the two vertical pressure rods 710, a one-way rubber sheet 713 is arranged below the upper through pipe 711, a rubber plug sheet 714 is arranged below the pressure plug plate 712, a front end of the piston 74 is fixedly connected to a discharge pipe 79, the long groove 72 is fixedly connected to the housing 4, a return spring is arranged on the outside of the piston 74, and the two ends of the return spring are respectively fixedly connected to the long groove 72 and the cross bar 73, the rear end of the piston 74 is fixedly connected to the long groove 72, the liquid storage end 76 is fixedly connected to the housing 4, and the pressure push rod 7 The remaining cross bar 73 is fixedly connected, the pressure plate 78 is fixedly connected to the pressure plug plate 712, the vertical pressure rod 710 is slidably connected to the top of the liquid storage end 76, and the outer surface of the vertical pressure rod 710 is provided with an elastic spring, and the two ends of the elastic spring are respectively fixedly connected to the liquid storage end 76 and the pressure plug plate 712, so that the pressure plug plate 712 squeezes the air between the pressure plug plate 712 and the rubber plug piece 714. When the air pressure inside the pressure plug plate 712 and the rubber plug piece 714 increases, the pressure plug plate 712 presses the rubber plug piece 714 again according to the above steps. 4, the air pressure will push the rubber plug 714 downward to squeeze the internal space of the liquid storage end 76, so that the liquid in the liquid storage end 76 enters the piston 74 in one direction along the connected infusion tube 75 under the action of pressure, and after the piston 74 is compressed and contracted, it is discharged in one direction through the connected discharge tube 79 to the contact position of the guide rail 9 and the side guard plate 3, so as to lubricate the contact position of the guide rail 9 and the side guard plate 3, prevent the side guard plate 3 or the guide rail 9 from excessive wear and affecting the movement accuracy, and prevent the guide rail 9 from being exposed to the air and corroding and rusting to affect the movement of the side guard plate 3.

[0044] Working principle: The built-in grating and grating encoder cooperate with the electromagnet in the casing 4 to change the magnetic poles, so that the magnetic poles generated by the electromagnet are the same as the magnetic poles of the permanent magnet block 8 to generate repulsion. When the casing 4 is pushed to move along the guide rail 9 by the repulsive force, the side guard plate 3 on the casing 4 slides along the guide rail 9, and the liquid-displacing end 51 moves together with the casing 4. The movement of the liquid-displacing end 51 drives the magnetic wheel 53 connected to the rotating shaft 52 to move, and the magnetic blocks 54 with alternating magnetic poles on the magnetic wheel 53 generate magnetic force to attract the permanent magnet blocks 8 at different positions on the slide plate 1, so that the magnetic wheel 53 drives the connected rotating shaft 52 to rotate under the repulsive force of the magnetic poles of the permanent magnet block 8, and drives the flip liquid plate 513 to rotate through the rotation of the rotating shaft 52. Through the rotation of the flip liquid plate 513, the left liquid chamber of the liquid-displacing end 51 is discharged into the right liquid chamber through the liquid groove 511 on the liquid chamber partition 510, and then through the right liquid The flip liquid plate 513 in the room pushes the liquid to be discharged from the right infusion port 512 to the external liquid tube 58, so that the external liquid tube 58 dissipates the heat of the liquid in the external liquid tube 58 through the fins on the side of the side guard plate 3, so that the fins outside the side guard plate 3 move with the housing 4 and contact the flowing air so that the heat of the liquid in the external liquid tube 58 is taken away by the flowing air, and then the liquid in the external liquid tube 58 passes into the connected internal liquid tube 59, and the liquid in the internal liquid tube 59 absorbs the heat generated by the electromagnet and other built-in components and then flows into the external liquid tube 58 on the left, and flows into the left infusion port 512 through the left external liquid tube 58 to the inside of the liquid drive end 51, and the heat generated in the housing 4 is taken away by the flow of liquid in the internal liquid tube 59 and the external liquid tube 58, so as to avoid overheating inside the housing 4 causing the built-in grating and grating encoder to heat up and affect the distance measurement accuracy, and avoid affecting the overall movement accuracy of the housing 4;

[0045] When the rotating shaft 52 rotates, the connected convex handle 67 is driven to rotate at the same time, and the convex handle 67 moves upward to push up the contact position of the top slide plate 66, so that the top slide plate 66 slides upward along the vertical short rod 63 to squeeze the moisture-proof baffle 61. At the same time, the top slide plate 66 squeezes the moisture-proof baffle 61 upward, causing the middle part of the top surface of the moisture-proof baffle 61 to deform upward and bend into an arc. As the convex handle 67 continues to rotate, the connected convex handle 67 no longer supports the top slide plate 66 to move upward, and the deformed moisture-proof baffle 61 releases its elastic force, pushing the contacting top slide plate 66 to return to its original position along the vertical short rod 63, and the air in the end shell of the moisture-proof baffle 61 and the filter screen 62 is removed from the casing. 4, the moisture absorbed by the moisture-proof baffle 61 is discharged from the threading hole on the front side, so that the moisture adsorbed by the moisture-proof baffle 61 is pushed out from the threading hole after the moisture-proof baffle 61 is reset, thereby preventing the moisture from staying inside for a long time to corrode or maintain the copper wire or other metal parts and cause failures. At the same time, the top slide plate 66 is used to move upward to drive the connected inclined slot rod 68 to push the inclined slot push rod 69 to slide along the connection with the filter screen 62, so that the inclined slot push rod 69 pushes the moisture-proof baffle 61 on the rear side away from the position where the filter screen 62 is attached, and the moisture-proof baffle 61 is reset and then hits the filter screen 62, thereby preventing the filter screen 62 from being blocked and affecting the circulation of dry air;

[0046] When the magnetic wheel 53 rotates, the connected swing handle 71 will be driven to rotate. The rotation of the swing handle 71 pushes the cross bar 73 to slide along the pressure plug plate 712 and squeeze the piston 74, so that the piston 74 contracts and then squeezes the return spring to compress. The movement of the cross bar 73 will drive the connected pressure push rod 77 to move and squeeze the pressure plate 78 to flip. The pressure plate 78 is pressed and pushes the vertical pressure rod 710 to move downward. At this time, the elastic spring outside the vertical pressure rod 710 is stretched and pushes the pressure plug plate 712 close to the rubber plug 714, and the one-way film 713 is in a closed state. When the pressure plug plate 712 is upward, the one-way film 713 is in an open state, so that the pressure plug plate 712 squeezes the space between the pressure plug plate 712 and the rubber plug 714. When the air pressure inside the pressure plug plate 712 and the rubber plug 714 increases, the pressure plug plate 712 applies pressure to the rubber plug 714 again according to the above steps. At this time, the air pressure will push the rubber plug 714 downward to squeeze the internal space of the liquid storage end 76, allowing the liquid inside the liquid storage end 76 to enter the piston 74 in one direction along the connected infusion tube 75 under the action of pressure, and after the piston 74 is compressed and contracted, it is discharged in one direction through the connected discharge tube 79 to the contact position between the guide rail 9 and the side guard plate 3, thereby lubricating the contact position between the guide rail 9 and the side guard plate 3, preventing the side guard plate 3 or the guide rail 9 from excessive wear and affecting the movement accuracy, and preventing the guide rail 9 from being exposed to the air and corroding and rusting and affecting the movement of the side guard plate 3.

[0047] A cooling method for a cooling device based on a linear motor, comprising:

[0048] S1: The built-in grating and grating encoder cooperate with the electromagnet in the housing 4 to change the magnetic poles, so that the magnetic poles generated by the electromagnet are the same as the magnetic poles of the permanent magnet block 8 to generate repulsion. When the housing 4 is pushed to move along the guide rail 9 by the repulsive force generated, the side guard plate 3 on the housing 4 slides along the guide rail 9, and the liquid-displacing end 51 moves together with the housing 4. The movement of the liquid-displacing end 51 drives the magnetic wheel 53 connected to the rotating shaft 52 to move, and the magnetic blocks 54 with alternating magnetic poles on the magnetic wheel 53 generate magnetic force to attract the permanent magnet blocks 8 at different positions on the slide plate 1, so that the magnetic wheel 53 drives the connected rotating shaft 52 to rotate under the repulsive force of the magnetic poles of the permanent magnet block 8, and the rotation of the rotating shaft 52 drives the flip liquid plate 513 to rotate;

[0049] S2: The liquid chamber body of the left liquid chamber of the liquid-displacing end 51 is rotated to discharge into the right liquid chamber through the liquid groove 511 on the liquid chamber partition 510, and then the liquid is pushed to be discharged from the right liquid infusion port 512 to the external liquid tube 58 through the liquid plate 513 in the right liquid chamber, so that the external liquid tube 58 dissipates heat from the liquid in the external liquid tube 58 through the fins on the side of the side guard plate 3, so that the fins outside the side guard plate 3 move with the shell 4 and contact with the flowing air, so that the heat of the liquid in the external liquid tube 58 is taken away by the flowing air;

[0050] S3: Then the liquid in the outer liquid tube 58 is passed into the connected inner liquid tube 59, and the liquid in the inner liquid tube 59 absorbs the heat generated by the electromagnet and other built-in components and then flows into the outer liquid tube 58 on the left, and flows into the left infusion port 512 through the left outer liquid tube 58 to the inside of the liquid drive end 51, and the heat generated in the housing 4 is taken away by the flow of liquid in the inner liquid tube 59 and the outer liquid tube 58, so as to avoid overheating inside the housing 4, which may cause the temperature of the built-in grating and grating encoder to rise and affect the distance measurement accuracy, and avoid affecting the overall movement accuracy of the housing 4;

[0051] S4: When the rotating shaft 52 rotates and drives the connected convex handle 67 to rotate, the convex handle 67 moves upward to push up the contact position of the top slide plate 66, so that the top slide plate 66 slides upward along the vertical short rod 63 to squeeze the moisture-proof baffle 61. At the same time, the top slide plate 66 squeezes the moisture-proof baffle 61 upward, causing the middle part of the top surface of the moisture-proof baffle 61 to deform upward and bend into an arc. As the convex handle 67 continues to rotate, the connected convex handle 67 no longer pushes the top slide plate 66 to move upward, and the deformed moisture-proof baffle 61 releases its elastic force, pushing the contacting top slide plate 66 to return to its original position along the vertical short rod 63, and discharges the air in the end shell of the moisture-proof baffle 61 and the filter screen 62 from the threading hole on the front side of the casing 4;

[0052] S5: The top slide plate 66 moves upward to drive the connected inclined slot rod 68 to push the inclined slot push rod 69 to slide along the connection of the filter screen 62, so that the inclined slot push rod 69 pushes the moisture-proof baffle 61 at the rear part away from the position where the filter screen 62 is attached, and after the moisture-proof baffle 61 is reset, it hits the filter screen 62, so as to prevent the filter screen 62 from being blocked and affecting the circulation of dry air;

[0053] S6: When the magnetic wheel 53 rotates, it drives the connected swing handle 71 to rotate. The swing handle 71 drives the cross bar 73 to slide along the pressure plug plate 712 and squeeze the piston 74. After the piston 74 contracts, the return spring is compressed. The movement of the cross bar 73 drives the connected pressure push rod 77 to move and squeeze the pressure plate 78 to flip. The pressure on the pressure plate 78 pushes the vertical pressure rod 710 to move downward.

[0054] S7: At this time, the elastic spring outside the vertical pressure rod 710 is stretched and pushes the pressure plug plate 712 close to the rubber plug 714, while the one-way film 713 is in a closed state. When the pressure plug plate 712 is upward, the one-way film 713 is in an open state, allowing the pressure plug plate 712 to squeeze the air between the pressure plug plate 712 and the rubber plug 714. When the air pressure inside the pressure plug plate 712 and the rubber plug 714 increases, the pressure plug plate 712 presses the rubber plug 714 again. At this time, the air pressure pushes the rubber plug 714 downward to squeeze the internal space of the liquid storage end 76;

[0055] S8: Allow the liquid inside the liquid storage end 76 to enter the piston 74 in one direction along the connected infusion tube 75 under the action of pressure, and after the piston 74 is compressed and contracted, discharge it in one direction through the connected discharge tube 79 to the contact position between the guide rail 9 and the side guard plate 3, thereby lubricating the contact position between the guide rail 9 and the side guard plate 3, preventing the side guard plate 3 or the guide rail 9 from excessive wear and affecting the movement accuracy, and preventing the guide rail 9 from being exposed to the air and corroding and rusting and affecting the movement of the side guard plate 3.

[0056] The present invention provides a cooling device based on a linear motor and a cooling method thereof. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A cooling device based on a linear motor, comprising a slide rail plate (1), characterized in that: A housing (4) is arranged above the slide rail plate (1); a top guard plate (2) is arranged at the top of the housing (4); side guard plates (3) are arranged on both sides of the top guard plate (2); a cooling mechanism (5) is arranged at the front end of the interior of the housing (4); a moisture-proof mechanism (6) is arranged at the top of the cooling mechanism (5); a lubrication mechanism (7) is arranged at the rear side of the interior of the housing (4); a plurality of permanent magnet blocks (8) are arranged in an equidistant array on the upper surface of the slide rail plate (1); guide rails (9) are arranged on both sides of the permanent magnet blocks (8); The cooling mechanism (5) comprises a liquid-displacing end (51), the interior of the liquid-displacing end (51) is rotatably connected to a rotating shaft (52), both ends of the rotating shaft (52) are fixedly connected to magnetic wheels (53), the outer surface of the magnetic wheel (53) is provided with a plurality of magnetic blocks (54) arranged in an equidistant array, the outer surface of the liquid-displacing end (51) is provided with a threading groove (55), the right inner wall of the liquid-displacing end (51) is rotatably connected to a ratchet (56), a resistance sheet (57) is arranged above the ratchet (56), and each The side of the side guard plate (3) away from the housing (4) is fixedly connected to an external liquid tube (58), the bottom end of the external liquid tube (58) is fixedly connected to an internal liquid tube (59), the middle of the inner wall of the liquid-discharging end (51) is fixedly connected to a liquid chamber partition (510), the side of the liquid chamber partition (510) is provided with a liquid passage groove (511), the front side of the liquid-discharging end (51) is fixedly connected to two left and right infusion ports (512), and the liquid-discharging end (51) is rotatably connected to a flip liquid plate (513) inside.

2. A cooling device based on a linear motor according to claim 1, characterized in that: The two side guard plates (3) are respectively fitted to the two sides of the casing (4), the guide rail (9) is fixedly connected to the slide rail plate (1), the magnetic poles of the two adjacent magnetic blocks (54) are opposite, the resistance sheet (57) is fixedly connected to the liquid-displacing end (51), and the top end of the external liquid tube (58) on the right side is connected to the right infusion port (512).

3. A cooling device based on a linear motor according to claim 2, characterized in that: The top end of the external liquid tube (58) on the left side is connected to the left infusion port (512), and the left and right sides of the liquid chamber partition (510) are respectively provided with a left liquid chamber and a right liquid chamber, and the flip liquid plate (513) is fixedly connected to the rotating shaft (52).

4. A cooling device based on a linear motor according to claim 3, characterized in that: The moisture-proof mechanism (6) comprises a moisture-proof baffle (61), the upper surface of which is slidably connected to a vertical short rod (63), a filter screen (62) is provided below the liquid-displacing end (51), a threading end (64) is fixedly connected to the rear bottom end of the moisture-proof baffle (61), a sealing ring (65) is threadedly connected to the rear side of the threading end (64), a top slide plate (66) is slidably connected to the outer side surface of the vertical short rod (63), a convex handle (67) is provided on the right side of the top slide plate (66), an inclined groove rod (68) is fixedly connected to the rear side surface of the top slide plate (66), and an inclined groove push rod (69) is slidably connected to the rear side surface of the inclined groove rod (68).

5. A cooling device based on a linear motor according to claim 4, characterized in that: The short vertical rod (63) is fixedly connected to the liquid-displacing end (51), the protruding handle (67) is fixedly connected to the rotating shaft (52), the threading end (64) corresponds to the position of the threading groove (55), and a threading hole is provided on the front side of the housing (4).

6. A cooling device based on a linear motor according to claim 5, characterized in that: The overall cross-sectional shape of the moisture-proof baffle (61) is L-shaped; the bottom end of the moisture-proof baffle (61) is fixedly connected to the filter screen (62), and the top end of the moisture-proof baffle (61) is fixedly connected to the top side of the interior of the casing (4).

7. A cooling device based on a linear motor according to claim 6, characterized in that: The lubricating mechanism (7) comprises a swing handle (71), a long groove (72) is arranged on the rear side of the swing handle (71), a cross bar (73) is slidably connected to the inner side of the long groove (72), a piston (74) is fixedly connected to the rear side of the cross bar (73), a liquid infusion tube (75) is fixedly connected to the side of the piston (74), an end of the liquid infusion tube (75) away from the piston (74) is fixedly connected to a liquid storage end (76), a top end of the liquid storage end (76) is hingedly connected to a pressure plate (78), and the pressure plate (78) is hingedly connected to the pressure plate (79). 8) is provided with a pressure push rod (77) above, two vertical pressure rods (710) are provided below the pressure plate (78), the bottom ends of the vertical pressure rods (710) are fixedly connected to a pressure plug plate (712), an upper through pipe (711) is provided between the two vertical pressure rods (710), a one-way rubber sheet (713) is provided below the upper through pipe (711), a rubber plug sheet (714) is provided below the pressure plug plate (712), and the front end of the piston (74) is fixedly connected to a discharge pipe (79).

8. A cooling device based on a linear motor according to claim 7, characterized in that: The long groove (72) is fixedly connected to the housing (4); a return spring is arranged on the outer side of the piston (74); and the two ends of the return spring are respectively fixedly connected to the long groove (72) and the cross bar (73); the rear end of the piston (74) is fixedly connected to the long groove (72); and the liquid storage end (76) is fixedly connected to the housing (4).

9. A cooling device based on a linear motor according to claim 8, characterized in that: The pressure push rod (77) is fixedly connected to the remaining cross bar (73), the pressure plate (78) is fixedly connected to the pressure plug plate (712), the vertical pressure rod (710) is slidably connected to the top of the liquid storage end (76), and an elastic spring is provided on the outer surface of the vertical pressure rod (710), and the two ends of the elastic spring are respectively fixedly connected to the liquid storage end (76) and the pressure plug plate (712).

10. The cooling method of a cooling device based on a linear motor according to claim 9, characterized in that: include: S1: The built-in grating and grating encoder cooperate with the electromagnet in the housing (4) to change the magnetic poles, so that the magnetic poles generated by the electromagnet are the same as the magnetic poles of the permanent magnet block (8) to generate repulsive force. When the housing (4) is pushed to move along the guide rail (9) by the repulsive force generated, the side guard plate (3) on the housing (4) slides along the guide rail (9), and the liquid-displacing end (51) moves together with the housing (4). The movement of the liquid-displacing end (51) drives the magnetic wheel (53) connected to the rotating shaft (52) to move, and the magnetic blocks (54) with alternating magnetic poles on the magnetic wheel (53) generate magnetic force to attract the permanent magnet blocks (8) at different positions on the slide rail plate (1), so that the magnetic wheel (53) drives the connected rotating shaft (52) to rotate under the repulsive force of the magnetic poles of the permanent magnet block (8), and drives the flip liquid plate (513) to rotate through the rotation of the rotating shaft (52); S2: The liquid chamber body of the left liquid chamber of the liquid driving end (51) is rotated to discharge the liquid into the right liquid chamber through the liquid groove (511) on the liquid chamber partition (510), and then the liquid is pushed to be discharged from the right liquid infusion port (512) to the external liquid tube (58) through the liquid plate (513) in the right liquid chamber, so that the external liquid tube (58) dissipates the heat of the liquid in the external liquid tube (58) through the fins on the side of the side guard plate (3), so that the fins outside the side guard plate (3) move with the shell (4) and contact with the flowing air, so that the heat of the liquid in the external liquid tube (58) is taken away by the flowing air; S3: Subsequently, the liquid in the outer liquid tube (58) is passed into the connected inner liquid tube (59), and the liquid in the inner liquid tube (59) absorbs the heat generated by the electromagnet and other internal components, and then flows into the outer liquid tube (58) on the left, and flows into the left infusion port (512) through the left outer liquid tube (58) to the inside of the liquid drive end (51), and the heat generated in the housing (4) is taken away by the flow of liquid in the inner liquid tube (59) and the outer liquid tube (58), so as to avoid overheating inside the housing (4) and causing the temperature of the built-in grating and grating encoder to rise and affect the distance measurement accuracy, and avoid affecting the overall movement accuracy of the housing (4); S4: When the rotating shaft (52) rotates, the connected convex handle (67) is driven to rotate at the same time. The convex handle (67) moves upward to push the contact position of the top slide plate (66) upward, so that the top slide plate (66) slides upward along the vertical short rod (63) to squeeze the moisture-proof baffle (61). At the same time, the top slide plate (66) squeezes the moisture-proof baffle (61) upward, causing the middle part of the top surface of the moisture-proof baffle (61) to deform upward and bend into an arc. As the convex handle (67) continues to rotate, the connected convex handle (67) no longer pushes the top slide plate (66) to move upward, and the deformed moisture-proof baffle (61) releases its elastic force, pushing the contacting top slide plate (66) to return to its original position along the vertical short rod (63), and discharges the air in the moisture-proof baffle (61) and the filter screen (62) end shell from the threading hole on the front side of the casing (4); S5: The top slide plate (66) moves upward to drive the connected inclined slot rod (68) to push the inclined slot push rod (69) to slide along the connection point of the filter screen (62), so that the inclined slot push rod (69) pushes the moisture-proof baffle (61) at the rear side away from the position where the filter screen (62) is attached, and after the moisture-proof baffle (61) is reset, it hits the filter screen (62), thereby preventing the filter screen (62) from being blocked and affecting the circulation of dry air; S6: When the magnetic wheel (53) rotates, it drives the connected swing handle (71) to rotate. The swing handle (71) drives the cross bar (73) to slide along the pressure plug plate (712) and squeeze the piston (74), so that the piston (74) contracts and then squeezes the return spring. The movement of the cross bar (73) drives the connected pressure push rod (77) to move and squeeze the pressure plate (78) to flip. The pressure on the pressure plate (78) drives the vertical pressure rod (710) to move downward; S7: At this time, the elastic spring outside the vertical pressure rod (710) is stretched and pushes the pressure plug plate (712) close to the rubber plug (714), while the one-way film (713) is in a closed state. When the pressure plug plate (712) is upward, the one-way film (713) is in an open state, allowing the pressure plug plate (712) to squeeze the air between the pressure plug plate (712) and the rubber plug (714). When the air pressure inside the pressure plug plate (712) and the rubber plug (714) increases, the pressure plug plate (712) presses the rubber plug (714) again. At this time, the air pressure pushes the rubber plug (714) downward to squeeze the internal space of the liquid storage end (76); S8: The liquid in the liquid storage end (76) is allowed to flow into the piston (74) in one direction along the connected liquid infusion tube (75) under the action of pressure, and after the piston (74) is compressed and contracted, the liquid is discharged in one direction through the connected liquid discharge tube (79) to the contact position between the guide rail (9) and the side guard plate (3), thereby lubricating the contact position between the guide rail (9) and the side guard plate (3), preventing the side guard plate (3) or the guide rail (9) from excessive wear and affecting the movement accuracy, and preventing the guide rail (9) from being exposed to the air and corroding and rusting, thereby affecting the movement of the side guard plate (3).

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