A long-term self-lubricating device for fan bearing seat

By designing the circulation oil circuit system and automatic filtering device in the fan bearing seat, the problem of lubricating oil producing black gel substances is solved, and the long-term self-lubricating and cooling effect is achieved, improving the lubricating effect of the bearing and the stability of the equipment.

CN120159808BActive Publication Date: 2025-08-19DEZHOU LONGYU AIR CONDITIONING EQUIP CO LTD
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Patent Information

Application Number
CN202510637164.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2025-08-19
Estimated Expiration
2045-05-19

AI Technical Summary

Technical Problem

The lubricant of the fan bearing seat is prone to generate black gel substances under high temperature, high pressure or long-term operation, resulting in a decrease in lubrication effect and difficulty in cleaning, affecting the bearing life and stable operation of the equipment.

Method used

A circulation oil circuit system including a liquid storage tank, a feed rack and a circulation rack is designed to circulate through the first turbine-driven lubricating oil, and is equipped with a filter plate and a filter box to automatically filter the black gel substance, achieving long-term self-lubricating and cooling effects.

Benefits of technology

Automatic circulation and filtration of lubricating oil is realized, the deposition of black gel substances is avoided, the lubrication effect and the service life of the bearing are improved, the cleaning process is simplified, and the equipment is operated stably.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a long-term self-lubricating device for a fan bearing seat, and in particular to the technical field of bearing seat lubrication. In order to overcome the disadvantage that black gel material is not easy to clean. A long-term self-lubricating device for a fan bearing seat, comprising a base, a shaft is placed on the base, a sealing cover is fixed to the base by bolts, the bearing symmetrically arranged along the base is fixedly installed between the base and the sealing cover, a sealing ring is sleeved on the outer diameter side wall of the bearing, the feed rack is connected to the liquid storage tank, the side of the bearing away from the feed rack is fixedly connected to a circulation rack, a first turbine is fixedly installed in the circulation rack, and a fastening cover is fixed to the base and the end face of the sealing cover. The present invention forms a circulating oil circuit system through the lines of the liquid storage tank, the feed rack and the circulation rack, and the lubricating oil is driven to circulate in the oil circuit system through the first turbine.
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Description

Technical Field

[0001] The present invention relates to the technical field of bearing seat lubrication, and in particular to a long-term self-lubricating device for a fan bearing seat. Background Art

[0002] Fan bearing lubrication involves the use of lubricating oil within the fan bearing housing to reduce friction and wear between the bearing and shaft, thereby ensuring smooth fan operation and extending the life of the equipment. Good lubrication also effectively dissipates heat, prevents equipment damage caused by high temperatures, and maintains efficient fan operation. Regular maintenance and lubricant replacement are key to ensuring the proper functioning of fan bearing housings.

[0003] When lubricating fan bearing seats, regular replenishment of lubricating oil ensures proper bearing operation. However, under high temperature, high pressure, or prolonged operation, lubricating oil can easily react chemically with oxygen, producing oxidation products that gradually form a black, gel-like substance. This substance changes the viscosity and fluidity of the lubricating oil, preventing it from evenly coating the bearing surface, increasing friction and wear, and seriously affecting lubrication and bearing life. Once the black gel is formed, the machine must be disassembled and thoroughly cleaned to restore the bearing seat's lubrication and extend the equipment's life.

[0004] Based on the above situation, the present invention proposes a long-term self-lubricating device for a fan bearing seat. Summary of the Invention

[0005] In order to overcome the disadvantage that the black gel material is difficult to clean, the present invention provides a long-term self-lubricating device for a fan bearing seat.

[0006] A long-term self-lubricating device for a fan bearing seat, comprising a base, a shaft placed on the base, a sealing cover fixed to the base by bolts, a bearing symmetrically arranged along the base fixedly mounted between the base and the sealing cover, a sealing ring sleeved on the outer diameter side wall of the bearing, a liquid storage tank fixedly connected to the top of the sealing cover, a feed rack symmetrically arranged along the base fixedly mounted between the base and the sealing cover, the feed rack being communicated with the liquid storage tank, a circulation rack fixedly connected to the side of the bearing away from the feed rack, a first turbine fixedly mounted in the circulation rack, and a fastening cover fixedly connected to the end face of the base and the sealing cover.

[0007] It is further explained that liquid outlets are evenly arranged on one side of the feed rack adjacent to the bearing in the circumferential direction.

[0008] Further explanation: it also includes a filter plate, which is slidably connected to the circulation frame, and springs symmetrically arranged along the filter plate are fixedly connected between the filter plate and the two ends of the circulation frame. A sensor is fixedly installed on one side of the circulation frame, and a contact rod is fixedly connected to the side of the filter plate adjacent to the sensor. The circulation frame is fixedly installed with a second turbine, and the second turbine and the sensor are electrically connected through a control module. The circulation frame is fixed with a discharge pipe, and the side of the discharge pipe away from the circulation frame is fixed with the liquid storage tank. The side of the circulation frame adjacent to the discharge pipe is slidably connected with a baffle, and the liquid storage tank is clamped with a filter box.

[0009] It is further explained that the filter box is located directly below the discharge pipe.

[0010] Further explanation, it also includes the baffle, which is slidably connected to the side of the circulation frame adjacent to the discharge pipe, and the filter plate is fixedly connected to a clamping plate on the side away from the baffle. The circulation frame is slidably connected to a slide symmetrically arranged along the circulation frame, and a rotating guide plate is connected between the symmetrically arranged slides. A torsion spring is fixedly connected between the slide and the rotating guide plate, and a limiting block is fixedly connected to the side of the circulation frame adjacent to the clamping plate, and a fixing rod is fixedly connected to the side of the circulation frame adjacent to the slide.

[0011] It is further explained that an isolation plate is provided in the middle of the card plate to change the flow path of the lubricating oil.

[0012] Further description, it also includes a rotating rack, which is connected to the feed rack and is used to drive the lubricating oil in the rotating rack to prevent the lubricating oil from being deposited on the bottom of the rotating rack.

[0013] It is further explained that push pieces are evenly arranged on the outer side wall of the rotating rack in the circumferential direction.

[0014] Beneficial effects: The present invention forms a circulating oil circuit system through the liquid storage tank, the feed rack and the circulation rack. The lubricating oil is driven by the first turbine to circulate in the oil circuit system, thereby achieving a long-term self-lubricating effect on the bearing, and can also achieve the effect of cooling the lubricating oil while circulating.

[0015] The present invention realizes automatic switching of the flow path when the filter plate is blocked through the cooperation between the filter plate and the second turbine, thereby ensuring the circulation supply of the lubricating oil.

[0016] The present invention uses a filter box to automatically and timely filter and collect black gel substances in the clean lubricating oil, thereby avoiding affecting the viscosity and fluidity of the lubricating oil, improving the lubrication effect of the bearing and extending its service life. Moreover, it only requires disassembling the filter box for cleaning, without disassembling the machine for deep cleaning.

[0017] The present invention realizes the formation of an isolation chamber when the flow path of the lubricating oil is switched through the cooperation of the clamping plate, the rotating guide plate and the baffle, thereby automatically backwashing the filter plate and ensuring the continuous use of the filter screen.

[0018] In the present invention, the lubricating oil evenly enters the bearing seat through the cooperation between the feed rack and the first turbine.

[0019] Through the cooperation of the feed rack and the rotating rack, the lubricating oil deposited at the bottom of the feed rack is promoted to flow, preventing the lubricating oil at the bottom of the feed rack from being deposited for a long time to form gel, which affects the lubrication quality of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention with the base, sealing cover, bearing and other components separated.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the sealing cover, bearing, liquid storage box and other components of the present invention.

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the bearing, sealing ring and feed rack separated according to the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the first turbine, filter plate, spring and other components of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the spring, sensor, contact rod and other components of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the components such as the clamping plate, the sliding plate and the rotating guide plate of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the slide plate, the rotating guide plate and the torsion spring of the present invention.

[0028] Figure 9 It is a schematic diagram of the three-dimensional structure of the feed rack, rotating rack and other components of the present invention.

[0029] The markings of the components in the accompanying drawings are as follows: 1: base, 101: shaft, 2: sealing cover, 3: bearing, 301: sealing ring, 4: fastening cover, 5: liquid storage box, 6: feed rack, 7: circulation rack, 8: first turbine, 9: filter plate, 10: spring, 11: sensor, 12: contact rod, 13: second turbine, 14: discharge pipe, 15: filter box, 16: baffle, 17: clamping plate, 18: slide plate, 19: rotating guide plate, 191: limit block, 20: torsion spring, 21: fixing rod, 22: rotating rack. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0031] Example 1: A long-term self-lubricating device for a fan bearing seat, such as Figures 1-6 As shown, it includes a base 1, a shaft 101 is placed on the upper part of the base 1, a sealing cover 2 is fixed to the top of the base 1 by bolts, a bearing 3 symmetrically arranged along the left and right sides of the base 1 is fixedly installed between the base 1 and the sealing cover 2, and two sealing rings 301 are sleeved on the outer diameter side wall of the bearing 3, a liquid storage tank 5 is fixedly connected to the middle of the top of the sealing cover 2, a feed rack 6 symmetrically arranged along the left and right sides of the base 1 is fixedly connected between the base 1 and the sealing cover 2, the feed rack 6 is communicated with the liquid storage tank 5, and liquid outlets are evenly arranged on the inner side of the feed rack 6 adjacent to the bearing 3, a circulation rack 7 is fixedly connected to the lower part of the bearing 3, a first turbine 8 is fixedly installed in the circulation rack 7, and a fastening cover 4 is fixedly connected to the outermost end face of the base 1 and the sealing cover 2.

[0032] A sufficient amount of lubricating oil is stored in the bottom of the liquid storage tank 5 in advance. In order to achieve long-term self-lubrication of the bearing 3, the first turbine 8 is started. Under the driving force of the first turbine 8, the lubricating oil first flows through the feed rack 6 to the bearing 3. After passing through the bearing 3, the lubricating oil flows into the circulation rack 7, and then flows to the inner top of the liquid storage tank 5. In this way, the present invention forms a circulating oil circuit system through the liquid storage tank 5, the feed rack 6 and the circulation rack 7. The lubricating oil is driven by the first turbine 8 to circulate in the oil circuit system, thereby achieving a long-term self-lubricating effect on the bearing 3, and can also achieve the effect of cooling the lubricating oil while circulating.

[0033] like Figure 3 、 Figure 5 and Figure 6As shown, it also includes a filter plate 9, which is vertically slidably connected to the circulation frame 7. A spring 10 is fixed between the filter plate 9 and the circulation frame 7 and is symmetrically arranged along the front and back of the filter plate 9. A sensor 11 is fixedly installed in the circulation frame 7, and a contact rod 12 is laterally fixed to the side of the filter plate 9 adjacent to the sensor 11. The contact rod 12 contacts and cooperates with the sensor. A second turbine 13 is fixedly installed at the bottom of the circulation frame 7, and the second turbine 13 is electrically connected to the sensor 11 through a control module. A discharge pipe 14 is fixed to the inside of the circulation frame 7, and the top side of the discharge pipe 14 is fixed to the upper front side of the liquid storage tank 5. A baffle 16 is slidably connected to the side of the circulation frame 7 adjacent to the discharge pipe 14. The baffle 16 is used to separate the circulation frame 7. A filter box 15 is clamped on the upper front side of the liquid storage tank 5, and the filter box 15 is located directly below the discharge pipe 14.

[0034] In order to avoid the filter plate 9 from being blocked and affecting the circulation of the lubricating oil, when the filter plate 9 is blocked, the circulation of the lubricating oil is blocked, thereby pushing the filter plate 9 and the contact rod 12 to move to the left, and the spring 10 is deformed and compressed under the force. When the contact rod 12 moves to contact the sensor 11, the sensor 11 sends an electrical signal. After receiving the electrical signal, the control module controls the first turbine 8 to stop rotating and the second turbine 13 to start. The second turbine 13 draws the lubricating oil into the discharge pipe 14, and then the lubricating oil is poured into the filter box 15 through the discharge pipe 14, and the impurities in the lubricating oil are filtered and collected. The filtered impurities eventually flow back to the liquid storage tank 5. In this way, the present invention realizes automatic switching of the circulation path when the filter plate 9 is blocked through the cooperation of the filter plate 9 and the second turbine 13, thereby ensuring the circulation supply of the lubricating oil.

[0035] Moreover, the present invention automatically and timely filters and collects the black gel substance in the clean lubricating oil through the filter box 15, thereby avoiding affecting the viscosity and fluidity of the lubricating oil, improving the lubrication effect of the bearing 3 and extending its service life. Moreover, it is only necessary to disassemble the filter box 15 for cleaning, without disassembling the machine for deep cleaning.

[0036] Example 2: Based on Example 1, Figure 7 and Figure 8 As shown, it also includes a baffle 16, which is slidably connected to the lower side of the circulation frame 7, and a card plate 17 is fixedly connected to the side of the filter plate 9 away from the baffle 16. An isolation plate is provided in the middle of the card plate 17 for changing the flow path of the lubricating oil. The circulation frame 7 is slidably connected to a slide plate 18 symmetrically arranged along the front and back of the circulation frame 7, and a rotating guide plate 19 is connected between the symmetrically arranged slide plates 18. The rotating guide plate 19 cooperates with the card plate, and a torsion spring 20 is fixedly connected between the slide plate 18 and the rotating guide plate 19. A limiting block 191 is fixedly connected to the middle part of the side adjacent to the circulation frame 7 and the card plate 17. A fixing rod 21 is fixedly connected to one side of the top inside the circulation frame 7. The fixing rod 21 contacts and cooperates with the rotating guide plate 19 for limiting the rotating guide plate 19.

[0037] When the filter plate 9 slides to the left, the filter plate 9 drives the card plate 17 to move to the left, so that the card plate 17 no longer blocks the slide plate 18. Under the action of gravity, the slide plate 18 slides downward along the slide groove of the circulation frame 7 and drives the rotating guide plate 19 to move downward. As the rotating guide plate 19 moves downward and disengages from the fixed rod 21, the right side of the rotating guide plate 19 swings to the bottom and contacts the limit block 191 under the reset action of the torsion spring 20, and the left side of the rotating guide plate 19 contacts the isolation plate on the card plate 17. At this time, the rotating guide plate 19 tilts to the lower right to form two upper and lower chambers. The lubricating oil entering the circulation frame 7 begins to flow along the upper chamber formed by the rotating guide plate 19 and the isolation plate, and finally flows from the right side of the filter plate 9. To the left side of the filter plate 9. At the same time, when the filter plate 9 moves to the left, the sensor 11 is triggered to drive the control module to start the second turbine 13. The lubricating oil driven by the second turbine 13 pushes the baffle 16 upward to block the circulation frame 7 to form a flow channel. Subsequently, the lubricating oil on the left side of the filter plate 9 is blocked by the baffle 16 and cannot flow to the left. Finally, the lubricating oil on the left side of the filter plate 9 is guided by the second turbine 13 and flows from the lower left side of the filter plate 9 back to the lower chamber on the right side of the filter plate 9. During this period, the impurities on the filter plate 9 are backwashed. In this way, the lubricating oil can better backwash away the black gel substance on the filter plate 9, thereby improving the cleaning effect.

[0038] When the filter plate 9 slides to the right, the filter plate 9 drives the card plate 17 to move to the right. The card plate 17 contacts the slide plate 18. Under the extrusion of the inclined surface of the card plate 17, the slide plate 18 slides upward along the slide groove of the circulation frame 7 and drives the rotating guide plate 19 to move upward. As the rotating guide plate 19 moves upward and contacts the fixed rod 21, the rotating guide plate 19 swings back and resets under the extrusion of the fixed rod 21, and the torsion spring 20 is deformed, thereby achieving automatic reset.

[0039] Example 3: Based on Example 2, Figure 9 As shown, a rotating rack 22 is also included, which is connected to the feed rack 6. Push plates are evenly arranged on the outer wall of the rotating rack 22. The push plates are in contact with the side walls of the grooves of the feed rack 6 to drive the lubricating oil in the rotating rack 22 and prevent the lubricating oil from being deposited at the bottom of the rotating rack 22.

[0040] When the lubricating oil in the liquid storage tank 5 needs to enter the bearing 3 for lubrication, first, the negative pressure generated by the operation of the first turbine 8 sucks the lubricating oil in the bearing 3 seat into the circulation rack 7, and then the negative pressure generated inside the bearing 3 seat evenly sucks the lubricating oil in the feed rack 6 into the feed rack 6, thereby driving the liquid in the liquid storage tank 5 into the feed rack 6. When the lubricating oil enters the feed rack 6, the flowing lubricating oil drives the rotating rack 22 to rotate, thereby making the lubricating oil in the feed rack 6 flow better, preventing the lubricating oil from being deposited at the bottom of the feed rack 6 for a long time to produce gel material, affecting the quality of the lubricating oil. In this way, the present invention, through the cooperation of the feed rack 6 and the first turbine 8, the lubricating oil evenly enters the bearing 3 seat. At the same time, through the cooperation of the feed rack 6 and the rotating rack 22, the lubricating oil deposited at the bottom of the feed rack 6 is promoted to flow, preventing the lubricating oil at the bottom of the feed rack 6 from being deposited for a long time to produce gel, affecting the quality of the lubricating oil lubrication.

[0041] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A long-term self-lubricating device for a fan bearing seat, characterized by: The invention comprises a base (1), a shaft (101) is placed on the base (1), a sealing cover (2) is fixed to the base (1) by bolts, a bearing (3) symmetrically arranged along the base (1) is fixedly installed between the base (1) and the sealing cover (2), a sealing ring (301) is sleeved on the outer diameter side wall of the bearing (3), a liquid storage box (5) is fixedly connected to the top of the sealing cover (2), a feed rack (6) symmetrically arranged along the base (1) is fixedly connected between the base (1) and the sealing cover (2), the feed rack (6) is connected to the liquid storage box (5), a circulation rack (7) is fixedly connected to the side of the bearing (3) away from the feed rack (6), a first turbine (8) is fixedly installed in the circulation rack (7), and a fastening cover (4) is fixedly connected to the end face of the base (1) and the sealing cover (2); The invention also includes a filter plate (9), which is slidably connected to the circulation frame (7), and a spring (10) symmetrically arranged along the filter plate (9) is fixedly connected between the filter plate (9) and the two ends of the circulation frame (7). A sensor (11) is fixedly installed on one side of the circulation frame (7), and a contact rod (12) is fixedly connected to the side of the filter plate (9) adjacent to the sensor (11). A second turbine (13) is fixedly installed on the circulation frame (7), and the second turbine (13) and the sensor (11) are electrically connected through a control module. A discharge pipe (14) is fixedly connected to the circulation frame (7), and the discharge pipe (14) is fixedly connected to the liquid storage box (5) on the side away from the circulation frame (7). The liquid storage box (5) is clamped with a filter box (15).

2. A long-term self-lubricating device for a fan bearing seat according to claim 1, characterized in that: Liquid outlets are evenly arranged in the circumferential direction on one side of the feed rack (6) adjacent to the bearing (3).

3. A long-term self-lubricating device for a fan bearing seat according to claim 2, characterized in that: The filter box (15) is located directly below the discharge pipe (14).

4. A long-term self-lubricating device for a fan bearing seat according to claim 3, characterized in that: The invention also includes a baffle (16), which is slidably connected to a side of the circulation frame (7) adjacent to the discharge pipe (14); a clamping plate (17) is fixedly connected to a side of the filter plate (9) away from the baffle (16); a slide plate (18) symmetrically arranged along the circulation frame (7) is slidably connected to the circulation frame (7); a rotating guide plate (19) is connected between the symmetrically arranged slide plates (18); a torsion spring (20) is fixedly connected between the slide plates (18) and the rotating guide plates (19); a limiting block (191) is fixedly connected to a side of the circulation frame (7) adjacent to the clamping plate (17); and a fixing rod (21) is fixedly connected to a side of the circulation frame (7) adjacent to the slide plate (18).

5. A long-term self-lubricating device for a fan bearing seat according to claim 4, characterized in that: An isolation plate is provided in the middle of the clamping plate (17) for changing the flow path of the lubricating oil.

6. A long-term self-lubricating device for a fan bearing seat according to claim 5, characterized in that: It also includes a rotating rack (22), which is connected to the feed rack (6) and is used to drive the lubricating oil in the rotating rack (22) to prevent the lubricating oil from being deposited on the bottom of the rotating rack (22).

7. A long-term self-lubricating device for a fan bearing seat according to claim 6, characterized in that: The outer side wall of the rotating rack (22) is evenly provided with push pieces in the circumferential direction.

Citation Information

Patent Citations

  • Anti-overheating self-lubricating bearing seat

    CN216111784U