A water-cooled motor bearing that prevents over-temperature operation

Abstract

The present invention provides a water-cooled motor bearing that prevents over-limit operation temperature. It belongs to the technical field of bearings and aims to solve the problem that when the existing motor bearings are cooled by cooling air ducts, the cooling air blows on the bearing surface, but the cooling effect on the internal components is not ideal. The bearing comprises an outer steel ring, an inner steel ring and a mounting flange. The inner steel ring and the outer steel ring are connected by stainless steel balls and a retaining frame. The outer steel ring has a mounting cavity. The inner wall of the cavity is alternately provided with first and second heat dissipation fins to form a cooling channel. There are cold water inlet pipes and cooling outlet pipes at both ends. The retaining frame contains a water inlet pipe, a one-way water outlet pipe, a first cooling pipe, an arc-shaped circulation pipe and a second cooling pipe, which together constitute a water-cooling structure for the stainless steel balls. The outer steel ring port is provided with a mounting groove and a dust cover. The inner wall of the mounting cavity is provided with an optical fiber temperature sensor connected to the control host signal. The bearing can synchronously water-cool the internal and external components, has a good heat dissipation effect, can prevent the bearing operating temperature from exceeding the limit, and ensures safe use.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, and in particular to a water-cooled motor bearing capable of preventing operating temperature from exceeding a limit. Background Art

[0002] Motor bearings are crucial components for the stable transmission of high-voltage motor drive shafts. Therefore, safe use of motor bearings is essential for ensuring proper motor operation. In summer, operating temperatures can reach as high as 55°C, creating a harsh operating environment for high-voltage motor bearings. High temperatures rapidly degrade grease, making it difficult to form an oil film. This increases internal friction in the bearing and causes a sharp rise in temperature. Thermal expansion of the bearing material reduces the clearance, potentially causing vibration and noise, and even damage such as bearing seizure and cracking. To ensure proper bearing operation, measures such as enhanced cooling, optimized lubrication, and regular inspection and maintenance are essential. Only in this way can we effectively cope with the challenges of high temperatures, extend bearing life, and ensure stable motor operation in these extreme environments.

[0003] For example, the patent with announcement number CN213990419U discloses an automatic cooling device for motor bearings, including a cooling air box and a cooling air duct; a through hole is provided on the outer shell of the cooling air box, and the air inlet of the cooling air duct is connected to the through hole of the cooling air box; the air outlet of the cooling air duct is directed to the load bearing of the motor. The air outlet of the cooling air duct is conical. The through holes of the cooling air box are symmetrically arranged on both sides of the outer shell, and the air inlets of the cooling air duct are symmetrically connected to the through holes of the cooling air box, and the air outlet of the cooling air duct is symmetrically directed to both sides of the load bearing. However, the existing motor bearings only rely on the cooling air duct to blow air to cool their surfaces, and the cooling air is always on the surface of the bearing, and its cooling effect on the internal components of the bearing is very limited.

[0004] Therefore, a water-cooled motor bearing is introduced to prevent the operating temperature from exceeding the limit. Summary of the Invention

[0005] The purpose of the present invention is to provide a water-cooled motor bearing that prevents over-temperature operation, aiming to solve the problem in the above-mentioned background technology that when the existing motor bearings are cooled by cooling air ducts, the cooling air blows on the bearing surface and the cooling effect on its internal components is not ideal.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a water-cooled motor bearing that prevents operating temperature from exceeding the limit, comprising an outer steel ring and a mounting flange fixedly connected to the outer wall at the bottom of the outer steel ring, an inner steel ring is provided in an inner ring sleeve of the outer steel ring, an inner groove is provided on the outer wall at the middle of the inner steel ring, stainless steel balls are movably engaged and arranged in the inner groove at even intervals, a retaining frame is fixedly connected to the inner wall of the outer steel ring corresponding to the stainless steel balls, the other end of the stainless steel balls is movably engaged with the retaining frame, an installation cavity is provided inside the outer steel ring, first and second heat dissipation fins are alternately and evenly spaced on the inner walls on both sides of the installation cavity, the first and second heat dissipation fins form a cooling channel in the installation cavity, and a cold water inlet pipe and a cooling outlet pipe connected to the cooling channel are respectively provided on the outer walls on both sides of one end of the outer steel ring;

[0007] The retaining frame includes a water inlet pipe and a one-way water outlet pipe fixedly connected to the inner wall of the outer steel ring, the water inlet pipe and the one-way water outlet pipe are both connected to the cooling channel, and the ends of the water inlet pipe and the one-way water outlet pipe are fixedly connected to a connected first cooling pipe, the outer walls on both sides of the other end of the first cooling pipe are respectively fixedly connected to connected arc-shaped circulation pipes, and the ends of the arc-shaped circulation pipes are fixedly connected to a connected second cooling pipe. The first cooling pipe and the second cooling pipe are both annular in structure and coaxially arranged, the first cooling pipe and the second cooling pipe ring sleeves are clamped on the outer wall of the stainless steel ball, and a heat conduction plate is fixedly connected between the side walls of the arc-shaped circulation pipe between adjacent stainless steel balls.

[0008] Furthermore, the inner hole diameter of the first cooling tube is smaller than the inner hole diameter of the second cooling tube, and the first cooling tube and the second cooling tube cooperate with the arc-shaped circulation tube to form a net bag structure, which is movably clamped on the outer wall of the stainless steel ball away from the inner groove.

[0009] Furthermore, partition plates are fixedly connected to the inside of both ends of the first cooling pipe, and the partition plates divide the inner cavity of the first cooling pipe into two arc-shaped channels. The water inlet pipe and the one-way water outlet pipe are respectively located at the ends of the arc-shaped channels on one side of the two partition plates, and the arc-shaped circulation pipe is arranged on the outer wall of the first cooling pipe in the middle of the arc-shaped channel.

[0010] Furthermore, mounting grooves are respectively provided on the outer walls of the ports at both ends of the outer steel ring, and the two ends of the first heat dissipating fin and the second heat dissipating fin respectively extend through the outer walls of the mounting grooves at both ends of the outer steel ring, and an upper dust cover and a lower dust cover are movably engaged between the inner walls of the mounting grooves at both ends of the outer steel ring, and the upper dust cover and the lower dust cover are both provided with sleeve holes corresponding to the first heat dissipating fin and the second heat dissipating fin, and the upper dust cover and the lower dust cover are movably sleeved on the outer walls of the first heat dissipating fin and the second heat dissipating fin on the outside of the outer steel ring through the sleeve holes.

[0011] Furthermore, an optical fiber temperature sensor is fixedly connected to the inner wall of the installation cavity on one side of the cooling channel. The optical fiber temperature sensor has a built-in wireless Bluetooth module, and the optical fiber temperature sensor is connected to the control host signal through the wireless Bluetooth module.

[0012] Furthermore, an elastic membrane is fixedly connected to the inner wall of the installation cavity at the water inlet pipe port, and the four corners of the elastic membrane are fixedly connected to the inner wall of the installation cavity, a winding wheel is fixedly connected to the inner wall of the installation cavity opposite to the water inlet pipe port, and a through opening is opened at the end of the first heat dissipation fin on one side of the water inlet pipe port, a roller is movably provided on the inner wall at one end of the through opening, and a shift plate is fixedly connected to the outer wall of the roller at even intervals, a swivel is movably provided on the outer wall at the end of one of the shift plates, a traction rope is fixedly connected to the outer wall on one side of the swivel, and the other end of the traction rope is passed through the outer wall of the winding wheel and is fixedly connected to the outer wall at the middle part of the elastic membrane.

[0013] Furthermore, the rotating ring, the winding wheel and the water inlet pipe port are in the same horizontal plane, and when the rotating ring is located at one end of the rotating roller close to the winding wheel, the elastic membrane is tightly fitted on the outer wall of the water inlet port of the water inlet pipe.

[0014] Furthermore, the stainless steel ball has a hollow structure, a hollow cavity is provided inside the stainless steel ball, and the hollow cavity is filled with thermal conductive silicone grease.

[0015] Furthermore, a water collecting cylinder is fixedly provided on the inner wall of the inlet end of the cold water inlet pipe, a water filter cylinder is provided on the outer wall of the end of the water collecting cylinder with a movable sleeve, a water supply pipe is provided on the movable sleeve at the end of the water filter cylinder, and the end of the water supply pipe extends into the cooling channel. A water filter disc is fixedly connected between the inner walls of the water filter cylinder, a suspension rod is fixedly connected to the outer wall of the middle part of the water filter disc close to the water supply pipe, and the other end of the suspension rod extends to the inside of the water supply pipe and is fixedly connected to the end thereof with a turbine fan.

[0016] Furthermore, connecting holes are evenly spaced apart on the side walls of the water filter cartridges adjacent to the water filter disc, the connecting holes are located on the side of the water filter cartridge close to the water collecting cartridge, a deflection sealing plate is movably provided between the inner walls of the connecting holes, spring rods are evenly spaced and fixedly connected on the outer wall of the water filter disc close to the water collecting cartridge, a counterweight is fixedly connected to the end of the spring rod, a movable connecting rod is movably connected to the end of the counterweight, and a movable connecting rod is movably connected to the side wall of the deflection sealing plate, and a discharge valve pipe is provided on the outer wall on one side of the cold water inlet pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a water-cooled motor bearing that prevents excessive operating temperature. The bearing is installed on the motor housing through a mounting flange. When the motor drive shaft drives the inner steel ring and the stainless steel balls to rotate in the outer steel ring to generate heat, the cold water inlet pipe pumps cooling water into the cooling channel. The cooling water flows along the tortuous cooling channel to realize circulating water cooling of the outer steel ring. At the same time, the cooling water can enter the first cooling pipe, the arc-shaped circulation pipe, and the second cooling pipe through the water inlet pipe and then flow back to the cooling channel. The net bag structure formed by the water inlet pipe supports the stainless steel balls and cools them with water, thereby achieving the effect of synchronous water cooling of the internal and external components of the bearing. In addition, the first heat dissipation fins and the second heat dissipation fins pass through the outer wall of the outer steel ring to enhance the heat dissipation of the cooling water in the cooling channel. As a whole, the problems of grease failure and increased component wear caused by high temperature of the bearing are effectively avoided, thereby ensuring safe use and improving operational stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0021] Figure 3 is a schematic cross-sectional view of the outer steel ring of the present invention;

[0022] Figure 4 Schematic diagram of the retainer structure of the present invention;

[0023] Figure 5 is a cross-sectional view of the outer steel ring of the present invention;

[0024] Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0025] Figure 7 This is a cross-sectional view of the first cooling pipe of the present invention;

[0026] Figure 8 is a cross-sectional view of the stainless steel ball of the present invention;

[0027] Figure 9 This is a cross-sectional view of the cold water inlet pipe of the present invention;

[0028] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B in the middle.

[0029] In the figure: 1, outer steel ring; 101, mounting flange; 11, mounting cavity; 111, cooling channel; 12, first cooling fin; 121, opening; 122, roller; 123, dial plate; 124, swivel; 125, traction rope; 13, second cooling fin; 14, cold water inlet pipe; 1401, discharge valve pipe; 141, water collection cylinder; 142, water filter cylinder; 1421, connecting hole; 1422, deflection sealing plate; 143, water pipe; 144, water filter tray; 145, suspension rod; 146, turbofan; 1 47. Spring rod; 148. Counterweight; 149. Movable connecting rod; 15. Cooling outlet pipe; 16. Elastic membrane; 17. Fiber optic temperature sensor; 18. Winding wheel; 2. Inner steel ring; 21. Inner groove; 3. Stainless steel ball; 31. Hollow cavity; 32. Thermal grease; 4. Retaining frame; 41. Water inlet pipe; 42. One-way water outlet pipe; 43. First cooling pipe; 431. Partition plate; 44. Arc-shaped circulation pipe; 45. Second cooling pipe; 46. Heat transfer plate; 5. Upper dust cover; 6. Lower dust cover; 7. Hole. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 3 and Figure 8 , a water-cooled motor bearing for preventing over-temperature operation, comprising an outer steel ring 1, a mounting flange 101, an inner steel ring 2 and stainless steel balls 3 and other components. A mounting flange 101 is integrally formed on the outer wall at the bottom of the outer steel ring 1, and the inner steel ring 2 is suspended by a coaxial ring sleeve inside the outer steel ring 1. An inner groove 21 is opened on the outer wall at the middle of the inner steel ring 2, and stainless steel balls 3 are evenly spaced and movably engaged in the inner groove 21. The stainless steel balls 3 are hollow structures, and a hollow cavity 31 is arranged inside the stainless steel balls 3. The hollow cavity 31 is filled with thermal conductive silicone grease 32. The thermal conductive silicone grease 32 and the stainless steel balls 3 cooperate to quickly conduct and transfer the heat generated by the rolling friction of the stainless steel balls 3, and serve as a medium for transferring the heat generated by the rolling friction of the inner steel ring 2 to the outer steel ring 1. A retainer 4 is fixedly connected to the inner wall of the outer steel ring 1 corresponding to the stainless steel balls 3, and the other end of the stainless steel balls 3 is movably engaged with the retainer 4.

[0032] In order to solve the problem that when the existing motor bearings are cooled by cooling air ducts, the cooling air blows on the bearing surface and the cooling effect on its internal components is not ideal, please refer to Figure 1-Figure 7 , provide the following preferred technical solutions:

[0033] An installation cavity 11 is provided inside the outer steel ring 1, and first heat dissipation fins 12 and second heat dissipation fins 13 are evenly and alternately provided on the inner walls on both sides of the installation cavity 11. The first heat dissipation fins 12 and the second heat dissipation fins 13 form a cooling channel 111 in the installation cavity 11, and a cold water inlet pipe 14 and a cooling outlet pipe 15 connected to the cooling channel 111 are respectively provided on the outer walls on both sides of one end of the outer steel ring 1; the cold water inlet pipe 14 is externally connected to a cooling water pumping supply device, and an optical fiber temperature sensor 17 is fixedly connected to the inner wall of the installation cavity 11 on one side of the cooling channel 111. The optical fiber temperature sensor 17 has a built-in wireless Bluetooth module. The optical fiber temperature sensor 17 is connected to the control host signal through the wireless Bluetooth module, and the optical fiber temperature sensor 17 is used to monitor the temperature of the circulating cooling water inside the outer steel ring 1 in real time, so as to adjust the cooling water temperature according to the bearing temperature.

[0034] The retainer 4 includes a water inlet pipe 41 and a one-way water outlet pipe 42 fixedly connected to the inner wall of the outer steel ring 1. The water inlet pipe 41 and the one-way water outlet pipe 42 are both connected to the cooling channel 111, and the ends of the water inlet pipe 41 and the one-way water outlet pipe 42 are fixedly connected to a connected first cooling pipe 43. The outer walls on both sides of the other end of the first cooling pipe 43 are respectively fixedly connected to connected arc-shaped circulation pipes 44. The ends of the arc-shaped circulation pipes 44 are fixedly connected to connected second cooling pipes 45. The first cooling pipe 43 and the second cooling pipe 45 are both annular in structure and coaxially arranged. The connecting line between adjacent arc-shaped circulation pipes 44 on the second cooling pipe 45 is perpendicular to the connecting line between the water inlet pipe 41 and the one-way water outlet pipe 42. The inner hole diameter of the first cooling pipe 43 is smaller than the inner hole diameter of the second cooling pipe 45. The first cooling pipe 43 and the second cooling pipe 45 cooperate with the arc-shaped circulation pipe 44 to form a net bag structure. The net bag structure is movably clamped on the outer wall of the stainless steel ball 3 away from the inner groove 21. The stainless steel ball 3 is in contact with the inner wall of the outer steel ring 1 through the net bag structure. A heat conduction plate 46 is fixedly connected between the side walls of the arc-shaped circulation pipe 44 between adjacent stainless steel balls 3.

[0035] Partition plates 431 are fixedly connected to the inside of both ends of the first cooling pipe 43, and the partition plates 431 divide the inner cavity of the first cooling pipe 43 into two arc-shaped channels. The water inlet pipe 41 and the one-way water outlet pipe 42 are respectively located at the ends of the arc-shaped channels on one side of the two partition plates 431, and the arc-shaped circulation pipe 44 is arranged on the outer wall of the first cooling pipe 43 in the middle of the arc-shaped channel.

[0036] Mounting grooves are respectively provided on the outer walls of the ports at both ends of the outer steel ring 1, and both ends of the first heat dissipating fins 12 and the second heat dissipating fins 13 respectively extend through the outer walls of the mounting grooves at both ends of the outer steel ring 1, and an upper dust cover 5 and a lower dust cover 6 are movably engaged between the inner walls of the mounting grooves at both ends of the outer steel ring 1. The upper dust cover 5 and the lower dust cover 6 are both annular in structure, and the middle holes of the upper dust cover 5 and the lower dust cover 6 are movably engaged on the outer walls at both ends of the inner steel ring 2. The upper dust cover 5 and the lower dust cover 6 are both provided with sleeve holes 7 corresponding to the first heat dissipating fins 12 and the second heat dissipating fins 13. The upper dust cover 5 and the lower dust cover 6 are movably sleeved on the outer walls of the first heat dissipating fins 12 and the second heat dissipating fins 13 on the outside of the outer steel ring 1 through the sleeve holes 7, and the side walls of the upper dust cover 5 and the lower dust cover 6 on the outside of the sleeve holes 7 are evenly provided with air permeable micropores.

[0037] Specifically, the outer steel ring 1 is fixed to the motor housing by using the mounting flange 101, and the motor drive shaft passes through the inner steel ring 2 and extends to the outside of the motor housing. When the motor drive shaft drives the inner steel ring 2 to rotate inside the outer steel ring 1 based on the stainless steel balls 3, the rotation of the inner steel ring 2 drives the stainless steel balls 3 to roll on the inner wall of the outer steel ring 1. When the stainless steel balls 3 and the outer steel ring 1 generate heat through rolling friction, the cold water inlet pipe 14 pumps cooling water into the cooling channel 111. The cooling water flows along the tortuous cooling channel 111 to circulate and cool the outer steel ring 1. When the cooling water flows through the water inlet pipe 41 port between the cooling channels 111, the cooling water enters the annular first cooling pipe 43 from the water inlet pipe 41, and then enters the annular second cooling pipe 45 under the action of the arc-shaped circulation pipe 44 and then flows back. After being sprayed out through the one-way water outlet pipe 42, it re-enters the cooling channel 111. The first cooling tube 43 and the second cooling tube 45 cooperate with the arc-shaped circulation tube 44 to form a net bag structure to support the stainless steel ball 3. At the same time, cooling water is used to flow in the first cooling tube 43 and the second cooling tube 45 in a spiral manner to cool the stainless steel ball 3, thereby realizing synchronous water cooling of the outer steel ring 1 and the stainless steel ball 3, and taking into account the synchronous water cooling of the internal and external components of the bearing. The first heat dissipation fins 12 and the second heat dissipation fins 13 forming the cooling channel 111 extend through the outer wall of the outer steel ring 1. The first heat dissipation fins 12 and the second heat dissipation fins 13 further enhance the heat dissipation of the heat exchange cooling water in the cooling channel 111, greatly improving the heat dissipation and cooling effect of the internal and external components of the bearing, and avoiding the problem that the high temperature of the bearing causes the grease to fail quickly, the oil film is difficult to form, and the internal friction of the bearing aggravates the wear of its components, thereby ensuring the safe and convenient use of the bearing.

[0038] like Figure 3-Figure 6 As shown, in order to ensure the circulation effect of cooling water in the retainer 4, this embodiment provides the following technical solutions:

[0039] An elastic membrane 16 is fixedly connected to the inner wall of the mounting cavity 11 at the port of the water inlet pipe 41, and the four corners of the elastic membrane 16 are fixedly connected to the inner wall of the mounting cavity 11. A winding wheel 18 is fixedly connected to the inner wall of the mounting cavity 11 opposite to the port of the water inlet pipe 41, and a through-opening 121 is provided at the end of the first heat dissipation fin 12 on one side of the port of the water inlet pipe 41. A roller 122 is movably provided on the inner wall at one end of the through-opening 121, and a dial plate 123 is fixedly connected to the outer wall of the roller 122 at even intervals, and a swivel 124 is movably provided on the outer wall at the end of one of the dial plates 123, and a traction rope 125 is fixedly connected to the outer wall of one side of the swivel 124, and the other end of the traction rope 125 is passed through the outer wall of the winding wheel 18 and is fixedly connected to the outer wall at the middle part of the elastic membrane 16.

[0040] The rotating ring 124 , the winding wheel 18 and the port of the water inlet pipe 41 are in the same horizontal plane, and when the rotating ring 124 is located at one end of the roller 122 close to the winding wheel 18 , the elastic membrane 16 is tightly fitted on the outer wall of the water inlet port of the water inlet pipe 41 .

[0041] Specifically, when the cooling water flows in the cooling channel 111 and flows through the gap between the end of the first heat dissipation fin 12 and the inner wall of the installation cavity 11, the cooling water impacts the dial plate 123 to drive the roller 122 to rotate in the opening 121 on the first heat dissipation fin 12. When the roller 122 rotates, the dial plate 123 cooperates with the rotating ring 124 to stretch the traction rope 125. Based on the displacement difference when the rotating ring 124 rotates with the dial plate 123, the traction rope 125 intermittently pulls the elastic membrane 16 at the end of the water inlet pipe 41 under the positioning of the winding wheel 18, and the elastic membrane 16 is subjected to After pulling, the middle part is raised based on the four corners away from the port of the water inlet pipe 41, and the port of the water inlet pipe 41 is exposed, so that the cooling water pumped and circulated in the cooling channel 111 can enter the water inlet pipe 41, and when the elastic membrane 16 is deformed and reset, it can squeeze the cooling water in the cooling channel 111 and directionally flow into the water inlet pipe 41, so that the cooling water is pressurized and circulated in the water inlet pipe 41 to enter the retaining frame 4 to water-cool the stainless steel balls 3, avoiding the problem of difficulty in entry caused by the port of the water inlet pipe 41 being perpendicular to the flow direction of the cooling water in the cooling channel 111, thereby ensuring the stable flow of cooling water in the retaining frame 4.

[0042] like Figure 2 、 Figure 9 and Figure 10 As shown, in order to prevent impurities in the circulating cooling water from entering the cooling channel 111 and accumulating to cause blockage and affect the water cooling heat dissipation effect, this embodiment provides the following technical solutions:

[0043] A water collecting cylinder 141 is fixedly provided on the inner wall of the inlet end of the cold water inlet pipe 14, and a water filter cylinder 142 is provided on the outer wall of the end of the water collecting cylinder 141 with a movable sleeve. A water supply pipe 143 is provided on the movable sleeve at the end of the water filter cylinder 142. The end of the water supply pipe 143 extends into the cooling channel 111, and a water filter disc 144 is fixedly connected between the inner walls of the water filter cylinder 142. A suspension rod 145 is fixedly connected to the outer wall of the water filter disc 144 in the middle part near the water supply pipe 143. The other end of the suspension rod 145 extends to the inside of the water supply pipe 143 and is fixedly connected to the end thereof with a turbine fan 146.

[0044] Connecting holes 1421 are evenly spaced on the side wall of the water filter cartridge 142 adjacent to the water filter disc 144. The connecting holes 1421 are located on the side of the water filter cartridge 142 close to the water collecting cartridge 141. A deflection sealing plate 1422 is movably provided between the inner walls of the connecting holes 1421. Spring rods 147 are evenly spaced and fixedly connected on the outer wall of the water filter disc 144 close to the water collecting cartridge 141. A counterweight 148 is fixedly connected to the end of the spring rod 147. A movable connecting rod 149 is movably connected to the end of the counterweight 148. The end of the movable connecting rod 149 is movably connected to the side wall of the deflection sealing plate 1422. A discharge valve pipe 1401 is provided on the outer wall of one side of the cold water inlet pipe 14. When the bearing is installed vertically, the discharge valve pipe 1401 is located at the bottom of the cold water inlet pipe 14 to concentrate the impurity water samples for discharge.

[0045] Specifically, when the pumped cooling water enters the cold water inlet pipe 14, it flows into the water filter cylinder 142 through the water collecting cylinder 141. The water filter disc 144 between the inner walls of the water filter cylinder 142 finely filters the impurities in the cooling water. The filtered cooling water passes through the tail of the water filter cylinder 142 and the water pipe 143 and enters the cooling channel 111, thereby completing the circulating water cooling of the bearing. When the filtered cooling water flows through the water pipe 143, it impacts the turbine fan 146, so that the turbine fan 146 cooperates with the suspension rod 145 and the water filter disc 144 to drive the water filter cylinder 142 to rotate automatically between the water collecting cylinder 141 and the water pipe 143. When the water filter cylinder 142 rotates, the centrifugal force is used to push the counterweight block 148 to stretch the spring rod 147 on the water filter disc 144, so that the movable connecting rod 149 at the end of the counterweight block 148 deflects the spring rod 147 on the side wall of the water filter cylinder 142. The sealing plate 1422 is opened, and the impurities accumulated after the water filter disc 144 filters the cooling water are thrown to the edge along the surface of the water filter disc 144 due to the centrifugal force generated by the rotation of the water filter cartridge 142, and then thrown from the connecting hole 1421 to the inner cavity of the cold water inlet pipe 14 outside the water filter cartridge 142 for storage, realizing automatic cleaning of the water filter disc 144 to avoid it being blocked by impurities, and realizing the sustainable use of the water filter disc 144. After the cold water inlet pipe 14 stops supplying water, the rotation of the water filter cartridge 142 stops, the spring rod 147 resets and pulls the deflection sealing plate 1422 to automatically lock the connecting hole 1421 on the side wall of the water filter cartridge 142, avoiding the backflow of impurities and adhering to the water filter disc 144. At this time, it is only necessary to control the discharge valve pipe 1401 on the cold water inlet pipe 14 outside the outer steel ring 1 to open, so as to complete the complete discharge of the impurity water in the cold water inlet pipe 14, which is convenient to use.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-cooled motor bearing for preventing over-temperature operation, comprising an outer steel ring (1) and a mounting flange (101) fixedly connected to the outer wall at the bottom of the outer steel ring (1), an inner steel ring (2) being provided in an inner ring sleeve of the outer steel ring (1), characterized in that: An inner groove (21) is provided on the outer wall at the middle of the inner steel ring (2), and stainless steel balls (3) are evenly spaced and movably engaged in the inner groove (21). A retaining frame (4) is fixedly connected to the inner wall of the outer steel ring (1) corresponding to the stainless steel balls (3), and the other end of the stainless steel balls (3) is movably engaged with the retaining frame (4). An installation cavity (11) is provided inside the outer steel ring (1), and first heat dissipation fins (12) and second heat dissipation fins (13) are evenly spaced and alternately arranged on the inner walls on both sides of the installation cavity (11). The first heat dissipation fins (12) and the second heat dissipation fins (13) form a cooling channel (111) in the installation cavity (11), and a cold water inlet pipe (14) and a cooling outlet pipe (15) connected to the cooling channel (111) are respectively provided on the outer walls on both sides of one end of the outer steel ring (1); The retaining frame (4) includes a water inlet pipe (41) and a one-way water outlet pipe (42) fixedly connected to the inner wall of the outer steel ring (1), the water inlet pipe (41) and the one-way water outlet pipe (42) are both connected to the cooling channel (111), and the ends of the water inlet pipe (41) and the one-way water outlet pipe (42) are fixedly connected to a connected first cooling pipe (43), the outer walls on both sides of the other end of the first cooling pipe (43) are respectively fixedly connected to connected arc-shaped circulation pipes (44), and the ends of the arc-shaped circulation pipes (44) are fixedly connected to a connected second cooling pipe (45), the first cooling pipe (43) and the second cooling pipe (45) are both annular in structure and coaxially arranged, the first cooling pipe (43) and the second cooling pipe (45) are annularly engaged with the outer wall of the stainless steel ball (3), and a heat conducting plate (46) is fixedly connected between the side walls of the arc-shaped circulation pipe (44) between adjacent stainless steel balls (3).

2. A water-cooled motor bearing for preventing over-temperature operation according to claim 1, characterized in that: The inner hole diameter of the first cooling tube (43) is smaller than the inner hole diameter of the second cooling tube (45). The first cooling tube (43) and the second cooling tube (45) cooperate with the arc-shaped circulation tube (44) to form a net bag structure. The net bag structure is movably clamped on the outer wall of the stainless steel ball (3) away from the inner groove (21).

3. A water-cooled motor bearing for preventing over-temperature operation according to claim 2, characterized in that: A partition plate (431) is fixedly connected to the interior of both ends of the first cooling pipe (43), and the partition plate (431) divides the inner cavity of the first cooling pipe (43) into two arc-shaped channels. The water inlet pipe (41) and the one-way water outlet pipe (42) are respectively located at the ends of the arc-shaped channels on one side of the two partition plates (431), and the arc-shaped circulation pipe (44) is arranged on the outer wall of the first cooling pipe (43) in the middle of the arc-shaped channel.

4. A water-cooled motor bearing for preventing over-temperature operation according to claim 1, characterized in that: Mounting grooves are respectively provided on the outer walls of the ports at both ends of the outer steel ring (1), and both ends of the first heat dissipation fin (12) and the second heat dissipation fin (13) respectively extend through the outer walls of the mounting grooves at both ends of the outer steel ring (1), and an upper dust cover (5) and a lower dust cover (6) are movably engaged between the inner walls of the mounting grooves at both ends of the outer steel ring (1), and sleeve holes (7) are respectively provided on the upper dust cover (5) and the lower dust cover (6) corresponding to the first heat dissipation fin (12) and the second heat dissipation fin (13), and the upper dust cover (5) and the lower dust cover (6) are movably engaged on the outer walls of the first heat dissipation fin (12) and the second heat dissipation fin (13) on the outside of the outer steel ring (1) through the sleeve holes (7).

5. The water-cooled motor bearing for preventing over-temperature operation according to claim 1, characterized in that: An optical fiber temperature sensor (17) is fixedly connected to the inner wall of the installation cavity (11) on one side of the cooling channel (111), and the optical fiber temperature sensor (17) has a built-in wireless Bluetooth module. The optical fiber temperature sensor (17) is connected to the control host signal through the wireless Bluetooth module.

6. The water-cooled motor bearing for preventing over-temperature operation according to claim 1, characterized in that: An elastic membrane (16) is fixedly connected to the inner wall of the installation cavity (11) at the port of the water inlet pipe (41), and the four corners of the elastic membrane (16) are fixedly connected to the inner wall of the installation cavity (11). A winding wheel (18) is fixedly connected to the inner wall of the installation cavity (11) opposite to the port of the water inlet pipe (41), and a through-hole (121) is provided at the end of the first heat dissipation fin (12) on one side of the port of the water inlet pipe (41). A rotating roller (122) is movably provided on the inner wall of one end of the through-hole (121), and a shift plate (123) is fixedly connected to the outer wall of the rotating roller (122) at uniform intervals, and a rotating ring (124) is movably provided on the outer wall at the end of one of the shift plates (123), and a traction rope (125) is fixedly connected to the outer wall of one side of the traction rope (124), and the other end of the traction rope (125) is passed through the outer wall of the winding wheel (18) and then fixedly connected to the outer wall at the middle part of the elastic membrane (16).

7. A water-cooled motor bearing for preventing over-temperature operation according to claim 6, characterized in that: The rotating ring (124), the winding wheel (18) and the port of the water inlet pipe (41) are in the same horizontal plane, and when the rotating ring (124) is located at one end of the rotating roller (122) close to the winding wheel (18), the elastic membrane (16) is tightly fitted on the outer wall of the water inlet port of the water inlet pipe (41).

8. The water-cooled motor bearing for preventing over-temperature operation according to claim 1, characterized in that: The stainless steel ball (3) is a hollow structure, a hollow cavity (31) is provided inside the stainless steel ball (3), and the hollow cavity (31) is filled with thermal conductive silicone grease (32).

9. The water-cooled motor bearing for preventing over-temperature operation according to claim 1, characterized in that: A water collecting cylinder (141) is fixedly sleeved on the inner wall of the inlet end of the cold water inlet pipe (14), a water filter cylinder (142) is provided on the outer wall of the end of the water collecting cylinder (141) through a movable sleeve, a water delivery pipe (143) is provided on the movable sleeve at the end of the water filter cylinder (142), the end of the water delivery pipe (143) extends through the cooling channel (111), a water filter disc (144) is fixedly connected between the inner walls of the water filter cylinder (142), a suspension rod (145) is fixedly connected to the outer wall of the water filter disc (144) at the middle part of one side close to the water delivery pipe (143), and the other end of the suspension rod (145) extends into the water delivery pipe (143) and is fixedly connected to the end thereof with a turbine fan (146).

10. A water-cooled motor bearing for preventing over-temperature operation according to claim 9, characterized in that: Communication holes (1421) are evenly spaced apart on the side wall of the water filter cylinder (142) adjacent to the water filter disc (144). The communication holes (1421) are located on a side of the water filter cylinder (142) close to the water collecting cylinder (141). A deflection sealing plate (1422) is movably provided between the inner walls of the communication holes (1421). Spring rods (147) are evenly spaced apart and fixedly connected to the outer wall of the water filter disc (144) close to the water collecting cylinder (141). The ends of the spring rods (147) are fixedly connected to a counterweight (148). The ends of the counterweight (148) are movably connected to a movable connecting rod (149). The ends of the movable connecting rod (149) are movably connected to the side wall of the deflection sealing plate (1422). A discharge valve pipe (1401) is provided on the outer wall of one side of the cold water inlet pipe (14).

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