Water-cooling gear shaft for industrial robot and using method of water-cooling gear shaft

Abstract

The invention discloses a water-cooling gear shaft for an industrial robot and a using method of the water-cooling gear shaft, and relates to the technical field of industrial robot accessories, the water-cooling gear shaft comprises a water-cooling gear shaft body, a cooling flow channel and a large-diameter arc groove flow channel, the cooling flow channel is formed in the outer end of the water-cooling gear shaft body, and the large-diameter arc groove flow channel is formed in the inner wall of the cooling flow channel; the small-diameter arc groove flow channel is formed in the inner wall of the cooling flow channel, and exchange flow openings are formed between the large-diameter arc groove flow channel and the small-diameter arc groove flow channel in a staggered mode. The fluid transfer assembly is arranged on the inner side of the cooling flow channel, the large-diameter arc groove flow channel and the small-diameter arc groove flow channel increase the surface area of cooling water heat exchange, the contact area of cooling water and the inner wall of the water-cooling gear shaft body is increased, working heat of the water-cooling gear shaft body is promoted to be transferred to the cooling water from the water-cooling gear shaft body, and the cooling efficiency is improved. The flow channel is narrowed to ensure that the cooling water has enough flow and flow velocity so as to take away heat quickly, the temperature of the gear shaft during high-load operation is reduced, and the cooling effect of the gear shaft is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial robot accessories, in particular to a water-cooled gear shaft for an industrial robot and a use method thereof. Background Art

[0002] A water-cooled gear shaft is a mechanical component that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It also has internal cooling channels to enhance the heat dissipation efficiency of the gears. This design effectively reduces the temperature of the gear shaft when operating under high loads, preventing performance degradation or damage to the gears due to overheating. Water-cooled gear shafts are widely used in automated equipment such as assembly lines, handling robots, and welding robots, especially in situations where high loads and high speeds are required.

[0003] The defects of the water-cooled gear shaft in the prior art are:

[0004] 1. Patent document CN114749687B discloses a machine tool gear spindle with active cooling protection. The surface area of the gear spindle cooling medium for heat exchange with the internal cavity is small, and the flow path and speed of the cooling medium cannot be changed, which is not conducive to heat exchange and results in poor cooling effect of the gear shaft.

[0005] 2. Patent document CN211343945U discloses a water-cooled gear shaft for an industrial robot. The water-cooled gear shaft cannot form more vortices and fluctuations in the cooling water in the cooling channel. The slow flow rate reduces the heat exchange efficiency and thus cannot effectively distribute the heat inside the water-cooled gear shaft.

[0006] 3. Patent document CN208474309U discloses a heat-dissipating eccentric gear shaft, which cannot prevent and treat impurities and dirt on the inner wall of the through hole. The through hole is blocked by the dirt, which has an adverse effect on the cooling effect of the gear shaft and shortens the service life of the water-cooled gear shaft.

[0007] 4. Patent document CN208417223U discloses a gear shaft of a spur gear with a heat dissipation function. The gear shaft cannot enhance the interaction between the cooling medium and the interior of the gear shaft. The poor heat transfer effect increases the lateral temperature variation during the flow of the cooling medium, resulting in uneven heat transfer and poor heat exchange effect. Summary of the Invention

[0008] The object of the present invention is to provide a water-cooled gear shaft for an industrial robot and a method of using the same, so as to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, the present invention provides the following technical solutions: a water-cooled gear shaft for an industrial robot, comprising a water-cooled gear shaft body, a cooling channel, and a large-diameter arc-groove channel, wherein the cooling channel is provided at the outer end of the water-cooled gear shaft body, and a fluid transmission component is provided inside the cooling channel;

[0010] The fluid transfer component includes a large-diameter arc groove flow channel, a small-diameter arc groove flow channel, an exchange flow port, a contraction flow channel 1 and a contraction flow channel 2. The large-diameter arc groove flow channel is opened on the inner wall of the cooling flow channel, the small-diameter arc groove flow channel is opened on the inner wall of the cooling flow channel, and the small-diameter arc groove flow channel and the large-diameter arc groove flow channel are axially staggered. An exchange flow port is staggered between the large-diameter arc groove flow channel and the small-diameter arc groove flow channel. The contraction flow channel 1 is opened on the inner wall of the cooling flow channel, and the contraction flow channel 1 is connected to the large-diameter arc groove flow channel. The contraction flow channel 2 is opened on the inner wall of the cooling flow channel, and the contraction flow channel 2 is connected to the small-diameter arc groove flow channel.

[0011] Preferably, a cooling water discharge channel is provided at the other end of the water-cooled gear shaft, and the cooling water discharge channel is connected to the cooling flow channel, and smooth chamfers are provided at the connecting ends of the exchange flow port and the large-diameter arc groove flow channel and the small-diameter arc groove flow channel.

[0012] Preferably, opposite shallow grooves are symmetrically provided on the inner wall of the cooling channel, a micro-electronic water magnet is installed on the inner side of the opposite shallow grooves, a guide groove is provided on the bottom wall of the large-diameter arc groove channel, and a bearing seat is installed on the inner side of the guide groove.

[0013] Preferably, a deflector is rotatably installed on the inner side of the large-diameter arc slot flow channel, a deflection hole is penetrated through the outer side of the deflector, an abrasive scraper is installed on the outer end of the deflector, and the abrasive scraper is in contact with the inner wall of the large-diameter arc slot flow channel, an impact shaft is installed on the bottom end of the deflector, and the bottom end of the impact shaft is matched with the bearing seat.

[0014] Preferably, a gear body is installed on the outside of the water-cooled gear shaft, a gear keyway is opened on the outside of the water-cooled gear shaft, a sealing stud is installed on the outer end of the water-cooled gear shaft, and a threaded groove is opened on the outer side of one end of the water-cooled gear shaft close to the cooling water drain.

[0015] Preferably, a particle delivery storage tank is provided at one end of the water-cooled gear shaft close to the cooling channel, and the particle delivery storage tank is located outside the cooling channel, and a sealing cover frame is detachably connected to the outer end of the particle delivery storage tank.

[0016] Preferably, alumina nanoparticles are arranged inside the particle delivery storage tank, a gathering trough is provided on the inner wall of the particle delivery storage tank close to the cooling channel, a supplementary droplet is provided on the inner wall of the cooling channel, and the supplementary droplet is communicated with the gathering trough.

[0017] Preferably, an outward-opening long groove is opened on the inner wall of the other side of the particle delivery storage tank, a mounting seat is installed on the inner wall of the outward-opening long groove, a damping shock absorber is installed on the other end of the mounting seat, a telescopic spring column is provided on the outside of the damping shock absorber, the working end of the telescopic spring column is connected to a push plate, and a force-applying cotton pad is installed on the outside of the push plate.

[0018] A method for using a water-cooled gear shaft for an industrial robot is applicable to a water-cooled gear shaft for an industrial robot. Preferably, the method for using the water-cooled gear shaft comprises the following steps:

[0019] Step S1: Cooling water enters the interior of the water-cooled gear shaft through the cooling channel. The large-diameter arc groove channel and the small-diameter arc groove channel increase the surface area of the cooling water for heat exchange, thereby increasing the contact area between the cooling water and the inner wall of the water-cooled gear shaft, and promoting the transfer of working heat from the water-cooled gear shaft to the cooling water.

[0020] Step S2: The baffles provided inside the large-diameter arc groove flow channel cause the cooling water to form more vortices and waves in the cooling flow channel, thereby accelerating the flow rate;

[0021] Step S3: During the cooling water flow process, the aluminum oxide nanoparticles in the particle delivery tank enter the cooling channel from the replenishment port and continue to flow in the cooling channel along with the cooling water. The nanoparticles enhance the interaction between the cooling water and the interior of the water-cooled gear shaft, thereby increasing the fluctuation and vortex of the cooling water.

[0022] Step S4: The cooling water flows through the cooling channel and is then discharged from the cooling water drain channel so that the cooling water can circulate and reduce the temperature of the gear shaft when it is under high load operation.

[0023] Preferably, the step S1 further includes the following steps:

[0024] Step S11: exchanging the flow ports to allow cooling water to flow freely between the large-diameter arc slot flow channel and the small-diameter arc slot flow channel, changing the flow path and speed of the cooling water to cause disturbance and turbulence, thereby further promoting heat exchange;

[0025] In step S2, the following steps are also included:

[0026] Step S21: The impact of cooling water causes the baffle to rotate in the large-diameter arc slot flow channel through the impact shaft, and the abrasive scraper removes dirt and impurities attached to the wall during the rotation;

[0027] In step S3, the following steps are also included:

[0028] Step S31, the micro-electronic water magnet works. When the cooling water flows through the transverse magnetic field of the water magnet, the calcium, magnesium and other ions in the cooling water are affected by the induced electrical energy, thereby changing their crystallization conditions, forming loose sludge and being discharged with the cooling water.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention provides a fluid transfer component on the inner side of the cooling channel, and the cooling water enters the water-cooled gear shaft through the cooling channel. The large-diameter arc slot channel and the small-diameter arc slot channel increase the surface area of the cooling water heat exchange, improve the contact area between the cooling water and the inner wall of the water-cooled gear shaft, and promote the working heat of the water-cooled gear shaft to be transferred from itself to the cooling water. The exchange flow port allows the cooling water to flow freely between the large-diameter arc slot channel and the small-diameter arc slot channel, and changes the flow path and speed of the cooling water to cause disturbance and turbulence, which further promotes heat exchange. The cooling water in the large-diameter arc slot channel and the small-diameter arc slot channel are discharged through the contraction channel respectively. The narrowing of the channel ensures that the cooling water has sufficient flow and flow rate to quickly take away heat, reduce the temperature of the gear shaft when it is under high load operation, and improve the cooling effect of the gear shaft.

[0031] 2. The present invention installs a baffle on the inner side of the large-diameter arc slot flow channel, and the baffle arranged on the inner side of the large-diameter arc slot flow channel causes the cooling water to form more vortices and waves in the cooling channel, thereby accelerating the flow rate. The impact of the cooling water causes the baffle to rotate in the large-diameter arc slot flow channel through the impact shaft. During the rotation, the abrasive scraper removes the dirt and impurities attached to the wall surface, and quickly cleans the scale on the inner wall of the cooling water channel inside the water-cooled gear shaft. The increase in flow rate can increase the turbulence of the cooling water, increase the heat exchange efficiency, and thus take away the heat faster. The high-speed flow of cooling water can better distribute the heat inside the water-cooled gear shaft, avoid local overheating, and improve the overall stability of the water-cooled gear shaft during operation.

[0032] 3. The present invention installs a micro-electronic water magnet on the inner side of the opposite shallow groove. When the micro-electronic water magnet works, the calcium, magnesium and other ions in the cooling water will be affected by the induced electric energy when flowing through the transverse magnetic field of the water magnet, thereby changing their crystallization conditions. The water flow cuts the magnetic lines of force, causing the water molecules to gain magnetic energy and deform, thereby destroying the scaling ability. The calcium and magnesium ions in the cooling water are converted into loose slag and discharged with the cooling water to achieve the effects of scale prevention and descaling. The preventive descaling treatment of the cooling water avoids the blockage of the cooling channel caused by scale when the water-cooled gear shaft is continuously used, which has an adverse effect on the cooling effect of the gear shaft, thereby extending the service life of the water-cooled gear shaft.

[0033] 4. The present invention arranges aluminum oxide nanoparticles inside the particle delivery storage tank. During the flow of cooling water, the aluminum oxide nanoparticles in the particle delivery storage tank enter the cooling channel from the replenishing port and continue to flow in the cooling channel together with the cooling water. The nanoparticles enhance the interaction between the cooling water and the inside of the water-cooled gear shaft, strengthen the fluctuation and vortex of the cooling water, and are beneficial to the transfer of heat. The nanoparticles flowing with the cooling water increase the surface area and heat capacity of the cooling water, thereby improving the heat exchange efficiency. The aluminum oxide nanoparticles can reduce the lateral temperature change during the flow of cooling water, making the heat transfer more uniform and efficient, and further improving the heat exchange effect of the cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 Schematic diagram of the internal structure of the cooling channel of the present invention;

[0036] Figure 3 This is a schematic diagram of the internal structure of the large-diameter arc slot flow channel of the present invention;

[0037] Figure 4 This is an enlarged structural diagram of point A of the present invention;

[0038] Figure 5 Schematic diagram of the three-dimensional structure of the baffle of the present invention;

[0039] Figure 6 This is a schematic diagram of the internal structure of the water-cooled gear shaft of the present invention;

[0040] Figure 7 This is an enlarged structural diagram of point B of the present invention;

[0041] Figure 8 This is a schematic diagram of the pusher plate installation structure of the present invention;

[0042] Figure 9 It is the workflow diagram of the present invention.

[0043] In the figure: 1. Water-cooled gear shaft; 2. Cooling flow channel; 3. Large-diameter arc groove flow channel; 4. Baffle; 5. Particle delivery storage tank; 6. Outward-opening long groove; 7. Gear body; 8. Gear keyway; 9. Sealing stud; 10. Cooling water discharge channel; 11. Threaded connection groove; 12. Small-diameter arc groove flow channel; 13. Opposite shallow groove; 14. Micro-electronic water magnet; 15. Contraction flow channel 1; 16. Contraction flow channel 2; 17. Exchange flow port; 18. Smooth chamfer; 19. Impact shaft; 20. Guide groove; 21. Bearing seat; 22. Baffle hole; 23. Abrasive scraper; 24. Sealing cover frame; 25. Aluminum oxide nanoparticles; 26. Gathering trough; 27. Supplementary drop-out; 28. Mounting seat; 29. Damping shock absorber; 30. Telescopic spring column; 31. Push plate; 32. Force cotton pad. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a movable connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] See also Figure 1 、 Figure 2 and Figure 3 , an embodiment provided by the present invention: a water-cooled gear shaft for an industrial robot and a method of using the same;

[0048] It includes a water-cooled gear shaft 1, a cooling channel 2 and a fluid transmission component. The outer end of the water-cooled gear shaft 1 is provided with a cooling channel 2, and the inner side of the cooling channel 2 is provided with a fluid transmission component.

[0049] The fluid transfer component includes a large-diameter arc-groove flow channel 3, a small-diameter arc-groove flow channel 12, an exchange flow port 17, a contraction flow channel 15, and a contraction flow channel 2 16. The large-diameter arc-groove flow channel 3 is opened on the inner wall of the cooling flow channel 2, the small-diameter arc-groove flow channel 12 is opened on the inner wall of the cooling flow channel 2, and the small-diameter arc-groove flow channel 12 and the large-diameter arc-groove flow channel 3 are axially staggered. An exchange flow port 17 is staggered between the large-diameter arc-groove flow channel 3 and the small-diameter arc-groove flow channel 12. The contraction flow channel 15 is opened on the inner wall of the cooling flow channel 2 and is connected to the large-diameter arc-groove flow channel 3. The contraction flow channel 2 16 is opened on the inner wall of the cooling flow channel 2 and is connected to the small-diameter arc-groove flow channel 12.

[0050] The other end of the water-cooled gear shaft 1 is provided with a cooling water discharge channel 10, which is connected to the cooling flow channel 2. The connection ends of the exchange flow port 17, the large-diameter arc groove flow channel 3, and the small-diameter arc groove flow channel 12 are respectively provided with smooth chamfers 18.

[0051] The cooling water enters the water-cooled gear shaft 1 through the cooling channel 2. The large-diameter arc slot flow channel 3 and the small-diameter arc slot flow channel 12 are staggered in the axial direction to increase the surface area of the cooling water heat exchange, and improve the contact area between the cooling water and the inner wall of the water-cooled gear shaft 1. The exchange flow port 17 allows the cooling water to flow freely between the large-diameter arc slot flow channel 3 and the small-diameter arc slot flow channel 12, changing the flow path and speed of the cooling water to cause disturbance and turbulence, which further promotes heat exchange. The cooling water in the large-diameter arc slot flow channel 3 and the small-diameter arc slot flow channel 12 respectively passes through the contraction flow channel 1. 15 and the second contraction channel 16 are discharged. The narrowing of the channel ensures that the cooling water has sufficient flow and flow rate to quickly take away the heat, and the cooling water that has completed the heat exchange is quickly discharged. The cooling water flows through the cooling channel 2 and is discharged from the cooling water discharge channel 10 so that the cooling water can circulate and reduce the temperature of the gear shaft when it is subjected to high-load operation. The smooth chamfer 18 avoids the flow dead angle between the large-diameter arc groove channel 3, the small-diameter arc groove channel 12 and the exchange flow port 17, ensuring that the cooling water can flow evenly and efficiently through the entire water-cooled gear shaft body 1.

[0052] See also Figure 1 and Figure 2 , a water-cooled gear shaft for an industrial robot and a method of using the same;

[0053] The cooling channel 2 includes a cooling channel 2, opposing shallow grooves 13, and a micro-electronic water magnet 14. The large-diameter arc groove channel 3 is provided on the inner wall of the cooling channel 2, and the small-diameter arc groove channel 12 is provided on the inner wall of the cooling channel 2. The small-diameter arc groove channel 12 and the large-diameter arc groove channel 3 are axially staggered. The inner wall of the cooling channel 2 is symmetrically provided with opposing shallow grooves 13, and the micro-electronic water magnet 14 is installed inside the opposing shallow grooves 13.

[0054] The opposite shallow groove 13 provides an installation position for the micro-electronic water magnet 14. When the cooling water flows through the transverse magnetic field of the water magnet, the calcium and magnesium ions in the water will be affected by the induced electrical energy, thereby changing their crystallization conditions. The water flow cuts the magnetic lines of force, causing the water molecules to gain magnetic energy and deform, destroying the scaling ability. The calcium and magnesium ions in the cooling water become loose slag and are discharged with the cooling water to achieve the effect of scale prevention and descaling, preventing scale from gradually forming in the large-diameter arc slot flow channel 3. The working principle of the micro-electronic water magnet 14 is mainly through electromagnetic field or magnetic field. The field changes the physical and chemical properties of water, thereby achieving the effects of scale prevention, scale removal, sterilization and algae removal. The micro-electronic water magnet 14 uses high-frequency electromagnetic fields or magnetic fields to change the crystallization habits of scale-forming ions in the water under the action of the electromagnetic field, making it difficult to form scale. At the same time, the scale that has already formed will become soft and gradually fall off under the continuous flushing of cooling water. The micro-electronic water magnet 14 will generate microcurrents and active oxygen free radicals during operation. These substances will destroy the living environment of microorganisms and oxidize the cell membranes of microorganisms, thereby achieving the effect of sterilization and algae removal.

[0055] See also Figure 2 、 Figure 4 and Figure 5 , a water-cooled gear shaft for an industrial robot and a method of using the same;

[0056] The large-diameter arc slot flow channel 3 includes a large-diameter arc slot flow channel 3, a guide groove 20, and a baffle 4. The guide groove 20 is provided on the bottom wall of the large-diameter arc slot flow channel 3. A bearing seat 21 is installed on the inner side of the guide groove 20. The baffle 4 is rotatably installed on the inner side of the large-diameter arc slot flow channel 3. A baffle hole 22 is provided on the outer side of the baffle 4. An abrasive scraper 23 is installed on the outer end of the baffle 4, and the abrasive scraper 23 contacts the inner wall of the large-diameter arc slot flow channel 3. An impact shaft 19 is installed on the bottom end of the baffle 4, and the bottom end of the impact shaft 19 cooperates with the bearing seat 21.

[0057] The guide groove 20 provides a rotation space for the impact shaft 19, and the bearing seat 21 ensures the normal rotation and return of the impact shaft 19. The baffle 4 arranged on the inner side of the large-diameter arc groove flow channel 3 causes the cooling water to form more vortices and waves in the cooling flow channel 2, thereby accelerating the flow rate. The impact of the cooling water causes the baffle 4 to rotate in the large-diameter arc groove flow channel 3 through the impact shaft 19. During the rotation of the baffle 4, the abrasive scraper 23 removes the dirt and impurities attached to the wall of the large-diameter arc groove flow channel 3, and cooperates with the micro-electronic magnetic water device 14 to play a dual role of scale prevention and treatment. Increasing the flow rate can increase the turbulence of the cooling water, increase the heat exchange efficiency, and thus take away heat faster. The greater the water flow rate, the smaller the scale adhesion rate. Increasing the flow rate can reduce the deposition of impurities in the cooling water, thereby reducing the risk of equipment corrosion.

[0058] See also Figure 6 、 Figure 7 and Figure 8 , a water-cooled gear shaft for an industrial robot and a method of using the same;

[0059] The particle delivery storage tank 5 includes a particle delivery storage tank 5, aluminum oxide nanoparticles 25, and an outwardly open long groove 6. The aluminum oxide nanoparticles 25 are arranged inside the particle delivery storage tank 5. A gathering trough 26 is provided on the inner wall of the particle delivery storage tank 5 on one side close to the cooling channel 2. A supplementary dropper 27 is provided on the inner wall of the cooling channel 2, and the supplementary dropper 27 is communicated with the gathering trough 26. An outwardly open long groove 6 is provided on the inner wall of the other side of the particle delivery storage tank 5. A mounting seat 28 is installed on the inner wall of the outwardly open long groove 6. A damping shock absorber 29 is installed on the other end of the mounting seat 28. A telescopic spring column 30 is provided on the outside of the damping shock absorber 29. The working end of the telescopic spring column 30 is connected to a push plate 31. A force cotton pad 32 is installed on the outside of the push plate 31.

[0060] During the flow of cooling water, the aluminum oxide nanoparticles 25 in the particle delivery tank 5 enter the cooling channel 2 from the gathering trough 26 and the replenishing outlet 27 in turn and continue to flow in the cooling channel 2 along with the cooling water. The aluminum oxide nanoparticles 25 enhance the interaction between the cooling water and the inside of the water-cooled gear shaft 1, enhance the fluctuation and vortex of the cooling water, and are beneficial to the transfer of heat. The nanoparticles flowing with the cooling water increase the surface area and heat capacity of the cooling water. The aluminum oxide nanoparticles 25 can reduce the change in the lateral temperature during the flow of the cooling water, making the heat transfer more efficient. The addition of nano-alumina further improves the heat transfer effect of the cooling water. Compared with pure water, the heat transfer coefficient of the cooling water with the addition of nano-alumina can be increased by 40%. The nanoparticles suspended in the cooling water increase the surface area and heat capacity of the solution. The alumina nanoparticles 25 in the particle delivery tank 5 are continuously replenished when the material is dropped. The telescopic spring column 30 drives the push plate 31 to move downward continuously to apply pressure to the remaining alumina nanoparticles 25 in the particle delivery tank 5, so that the drop rate is faster. The force cotton pad 32 prevents the force cotton pad 32 from causing extrusion damage to the alumina nanoparticles 25.

[0061] See also Figure 1 and Figure 6 , a water-cooled gear shaft for an industrial robot and a method of using the same;

[0062] The invention comprises a water-cooled gear shaft 1, a particle delivery storage tank 5 and a sealing cover frame 24. The particle delivery storage tank 5 is provided at one end of the water-cooled gear shaft 1 close to the cooling channel 2, and the particle delivery storage tank 5 is located outside the cooling channel 2. The outer end of the particle delivery storage tank 5 is detachably connected to the sealing cover frame 24. A gear body 7 is mounted on the outer side of the water-cooled gear shaft 1. A gear keyway 8 is provided on the outer side of the water-cooled gear shaft 1. A sealing stud 9 is mounted on the outer end of the water-cooled gear shaft 1. A threaded connection groove 11 is provided on the outer side of one end of the water-cooled gear shaft 1 close to the cooling water discharge channel 10.

[0063] The water-cooled gear shaft 1 is connected to the use part of the industrial robot through the sealing stud 9 and the threaded groove 11 respectively, and the cooling channel 2 and the cooling water drain channel 10 are sealed and connected. The sealing cover frame 24 seals the particle delivery storage tank 5. The sealing cover frame 24 is opened to add aluminum oxide nanoparticles 25 into the particle delivery storage tank 5. The water-cooled gear shaft 1 is connected to other transmission gears through the gear body 7. The cooling water and the heat transferred from the gear body 7 to the water-cooled gear shaft 1 are exchanged, so that the gear shaft can effectively reduce the temperature when it is under high load operation, thereby avoiding performance degradation or damage of the gear due to overheating.

[0064] The method for using the water-cooled gear shaft includes the following steps:

[0065] Step S1: Cooling water enters the interior of the water-cooled gear shaft 1 through the cooling channel 2. The large-diameter arc-grooved channel 3 and the small-diameter arc-grooved channel 12 increase the surface area for heat exchange of the cooling water, thereby increasing the contact area between the cooling water and the inner wall of the water-cooled gear shaft 1, and promoting the transfer of working heat from the water-cooled gear shaft 1 to the cooling water.

[0066] Step S2: The baffle 4 provided inside the large-diameter arc slot flow channel 3 causes the cooling water to form more vortices and waves in the cooling flow channel 2, thereby accelerating the flow rate;

[0067] Step S3: During the cooling water flow process, the aluminum oxide nanoparticles 25 in the particle delivery tank 5 enter the cooling channel 2 through the replenishment port 27 and continue to flow in the cooling channel 2 along with the cooling water. The nanoparticles enhance the interaction between the cooling water and the interior of the water-cooled gear shaft 1, thereby increasing the fluctuation and vortex of the cooling water.

[0068] Step S4: The cooling water flows through the cooling channel 2 and is discharged from the cooling water drain channel 10 so that the cooling water can circulate and reduce the temperature of the gear shaft when it is under high load operation.

[0069] In step S1, the following steps are also included:

[0070] Step S11: The exchange flow port 17 allows the cooling water to flow freely between the large-diameter arc slot flow channel 3 and the small-diameter arc slot flow channel 12, changing the flow path and speed of the cooling water to cause disturbance and turbulence, thereby further promoting heat exchange;

[0071] In step S2, the following steps are also included:

[0072] Step S21: The impact of the cooling water causes the baffle 4 to rotate in the large-diameter arc slot flow channel 3 via the impact shaft 19. During the rotation, the abrasive scraper 23 removes dirt and impurities attached to the wall surface.

[0073] In step S3, the following steps are also included:

[0074] Step S31 , the micro-electronic water magnet 14 works. When the cooling water flows through the transverse magnetic field of the water magnet, the calcium, magnesium and other ions in the cooling water are affected by the induced electrical energy, thereby changing their crystallization conditions, forming loose sludge that is discharged along with the cooling water.

[0075] Working Principle: When using this device, cooling water first enters the interior of the water-cooled gear shaft 1 through the cooling channel 2. The large-diameter arc-groove channel 3 and the small-diameter arc-groove channel 12 increase the surface area for heat exchange of the cooling water, thereby increasing the contact area between the cooling water and the inner wall of the water-cooled gear shaft 1, and promoting the transfer of working heat from the water-cooled gear shaft 1 to the cooling water. The exchange flow port 17 allows the cooling water to flow freely between the large-diameter arc-groove channel 3 and the small-diameter arc-groove channel 12, changing the flow path and speed of the cooling water to cause disturbance and turbulence, further promoting heat exchange.

[0076] The baffle 4 provided inside the large-diameter arc slot flow channel 3 causes the cooling water to form more vortices and waves in the cooling channel 2, thereby accelerating the flow rate. The impact of the cooling water causes the baffle 4 to rotate in the large-diameter arc slot flow channel 3 via the impact shaft 19. During the rotation, the abrasive scraper 23 removes dirt and impurities attached to the wall surface.

[0077] During the cooling water flow process, the aluminum oxide nanoparticles 25 in the particle delivery storage tank 5 enter the cooling channel 2 from the replenishment port 27 and continue to flow in the cooling channel 2 along with the cooling water. The nanoparticles enhance the interaction between the cooling water and the interior of the water-cooled gear shaft 1, thereby increasing the fluctuations and vortices of the cooling water. The micro-electronic water magnet 14 operates. When the cooling water flows through the transverse magnetic field of the water magnet, the calcium, magnesium and other ions in the cooling water are affected by the induced electrical energy, thereby changing their crystallization conditions, forming loose sludge that is discharged with the cooling water.

[0078] The cooling water flows through the cooling channel 2 and is discharged from the cooling water drain channel 10 so that the cooling water can circulate and reduce the temperature of the gear shaft when it is subjected to high load operation.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A water-cooled gear shaft for an industrial robot, comprising a water-cooled gear shaft body (1), a cooling flow channel (2) and a large-diameter arc groove flow channel (3), characterized in that: A cooling channel (2) is provided at the outer end of the water-cooled gear shaft (1), and a fluid transmission component is provided on the inner side of the cooling channel (2); The fluid transfer component includes a large-diameter arc groove flow channel (3), a small-diameter arc groove flow channel (12), an exchange flow port (17), a contraction flow channel 1 (15) and a contraction flow channel 2 (16), wherein the large-diameter arc groove flow channel (3) is opened on the inner wall of the cooling flow channel (2), the small-diameter arc groove flow channel (12) is opened on the inner wall of the cooling flow channel (2), and the small-diameter arc groove flow channel (12) and the large-diameter arc groove flow channel (3) are axially staggered, and an exchange flow port (17) is staggered between the large-diameter arc groove flow channel (3) and the small-diameter arc groove flow channel (12), the contraction flow channel 1 (15) is opened on the inner wall of the cooling flow channel (2), and the contraction flow channel 1 (15) is connected to the large-diameter arc groove flow channel (3), and the contraction flow channel 2 (16) is opened on the inner wall of the cooling flow channel (2), and the contraction flow channel 2 (16) is connected to the small-diameter arc groove flow channel (12).

2. The water-cooled gear shaft for an industrial robot according to claim 1, characterized in that: The other end of the water-cooled gear shaft (1) is provided with a cooling water discharge channel (10), and the cooling water discharge channel (10) is connected to the cooling flow channel (2). The connection ends of the exchange flow port (17) and the large-diameter arc groove flow channel (3) and the small-diameter arc groove flow channel (12) are respectively provided with smooth chamfers (18).

3. The water-cooled gear shaft for an industrial robot according to claim 1, characterized in that: The inner wall of the cooling channel (2) is symmetrically provided with opposite shallow grooves (13), the inner side of which is mounted a micro-electronic water magnet (14), and the bottom wall of the large-diameter arc channel (3) is provided with a guide groove (20), the inner side of which is mounted a bearing seat (21).

4. The water-cooled gear shaft for an industrial robot according to claim 3, characterized in that: A baffle (4) is rotatably mounted on the inner side of the large-diameter arc slot flow channel (3), a baffle hole (22) is provided on the outer side of the baffle (4), an abrasive scraper (23) is mounted on the outer end of the baffle (4), and the abrasive scraper (23) is in contact with the inner wall of the large-diameter arc slot flow channel (3), an impact shaft (19) is mounted on the bottom end of the baffle (4), and the bottom end of the impact shaft (19) is matched with the bearing seat (21).

5. The water-cooled gear shaft for an industrial robot according to claim 1, characterized in that: A gear body (7) is installed on the outer side of the water-cooled gear shaft (1), a gear keyway (8) is provided on the outer side of the water-cooled gear shaft (1), a sealing stud (9) is installed on the outer end of the water-cooled gear shaft (1), and a threaded connection groove (11) is provided on the outer side of one end of the water-cooled gear shaft (1) close to the cooling water discharge channel (10).

6. The water-cooled gear shaft for an industrial robot according to claim 1, characterized in that: A particle delivery storage tank (5) is provided at one end of the water-cooled gear shaft (1) close to the cooling channel (2), and the particle delivery storage tank (5) is located outside the cooling channel (2). The outer end of the particle delivery storage tank (5) is detachably connected to a sealing cover frame (24).

7. The water-cooled gear shaft for an industrial robot according to claim 6, characterized in that: Alumina nanoparticles (25) are arranged inside the particle delivery storage tank (5), a gathering trough (26) is provided on the inner wall of the particle delivery storage tank (5) on one side close to the cooling channel (2), a supplementary drop opening (27) is provided on the inner wall of the cooling channel (2), and the supplementary drop opening (27) is communicated with the gathering trough (26).

8. The water-cooled gear shaft for an industrial robot according to claim 7, characterized in that: An outwardly opening long slot (6) is provided on the inner wall of the other side of the particle delivery storage tank (5), a mounting seat (28) is installed on the inner wall of the outwardly opening long slot (6), a damping shock absorber (29) is installed on the other end of the mounting seat (28), a telescopic spring column (30) is provided on the outer side of the damping shock absorber (29), a working end of the telescopic spring column (30) is connected to a push plate (31), and a force cotton pad (32) is installed on the outer side of the push plate (31).

9. A method for using a water-cooled gear shaft for an industrial robot, applicable to the water-cooled gear shaft for an industrial robot according to any one of claims 1 to 8, characterized in that: The method for using the water-cooled gear shaft includes the following steps: Step S1, cooling water enters the interior of the water-cooled gear shaft (1) through the cooling flow channel (2), the large-diameter arc groove flow channel (3) and the small-diameter arc groove flow channel (12) increase the surface area of the cooling water heat exchange, increase the contact area between the cooling water and the inner wall of the water-cooled gear shaft (1), and promote the transfer of working heat from the water-cooled gear shaft (1) to the cooling water; Step S2, the baffle (4) provided inside the large-diameter arc slot flow channel (3) causes the cooling water to form more vortices and waves in the cooling flow channel (2), thereby accelerating the flow rate; Step S3: During the cooling water flow process, the aluminum oxide nanoparticles (25) in the particle delivery tank (5) enter the cooling channel (2) from the replenishment port (27) and continue to flow in the cooling channel (2) along with the cooling water. The nanoparticles enhance the interaction between the cooling water and the interior of the water-cooled gear shaft (1), thereby enhancing the fluctuation and vortex of the cooling water. Step S4: The cooling water flows through the cooling channel (2) and is discharged from the cooling water discharge channel (10) so that the cooling water can circulate and reduce the temperature of the gear shaft when it is under high load operation.

10. The method for using a water-cooled gear shaft for an industrial robot according to claim 9, characterized in that: In the step S1, the following steps are also included: Step S11, exchanging the flow ports (17) to allow the cooling water to flow freely between the large-diameter arc slot flow channel (3) and the small-diameter arc slot flow channel (12), changing the flow path and speed of the cooling water to cause disturbance and turbulence, thereby further promoting heat exchange; In step S2, the following steps are also included: Step S21: The impact of the cooling water causes the baffle (4) to rotate in the large-diameter arc slot flow channel (3) through the impact shaft (19), and the abrasive scraper (23) removes dirt and impurities attached to the wall during the rotation; In step S3, the following steps are also included: Step S31, the micro-electronic water magnet (14) works, and when the cooling water flows through the transverse magnetic field of the water magnet, the calcium, magnesium and other ions in the cooling water are affected by the induced electrical energy, thereby changing their crystallization conditions, forming loose sludge and being discharged with the cooling water.

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