Oil supply structure of a rotating shaft bearing

Abstract

The utility model belongs to bearing technical field, specifically disclose a kind of oil supply structure of rotating shaft bearing, including the shell being arranged in bearing seat top, the side of shell is equipped with oil supply assembly;Oil supply assembly includes the oil supply unit being communicated with oil source and the flow guide unit for guiding lubricating oil diffusion;Oil supply unit includes oil inlet pipe and the control valve being arranged in oil inlet pipe;Flow guide unit includes oil storage cavity and the inclined flow guide cavity being communicated with it, the cross section of inclined flow guide cavity gradually reduces along oil outlet direction, the inside rotation of shell is connected with bearing body, the outlet of inclined flow guide cavity is towards bearing body setting, the side of shell is detachably provided with connecting plate, shell and connecting plate are connected by fastener, the oil supply assembly of the utility model can be continuously communicated with external oil source, without stopping machine, the delivery of lubricating oil can be realized, avoid the interruption of production process due to stopping machine when artificial filling, guarantee the continuity of equipment operation, improve production efficiency.

Description

Technical Field

[0001] This application relates to the field of bearing technology, and more specifically, to an oil supply structure for a rotating shaft bearing. Background Technology

[0002] Shaft bearings are core supporting components in mechanical transmission systems and are widely used in various rotating machinery such as machine tools, punch presses, and metallurgical equipment. Their main function is to transmit radial and axial loads of the shaft to the base through rolling or sliding friction, while ensuring the accuracy and stability of the shaft during high-speed rotation. The fit accuracy between the shaft and the bearing, as well as the lubrication condition, directly affect the operating efficiency, vibration noise, and service life of the entire mechanical system. Among these factors, lubrication is the key to maintaining the long-term reliable operation of the shaft bearing.

[0003] Traditional lubrication methods mainly involve manual periodic addition. Manual addition requires stopping the machine, which not only interrupts the production process, but also the amount of grease added depends on the operator's experience, which can easily lead to waste due to excessive addition or insufficient lubrication due to insufficient addition. Utility Model Content

[0004] To address the aforementioned problems, this application provides an oil supply structure for a rotating shaft bearing.

[0005] The oil supply structure for a rotating shaft bearing provided in this application adopts the following technical solution: An oil supply structure for a rotating shaft bearing includes a housing disposed on the top of the bearing housing, and an oil supply assembly provided on one side of the housing; The oil supply assembly includes an oil supply unit connected to an oil source and a flow guiding unit for guiding the diffusion of lubricating oil; The oil supply unit includes an oil inlet pipe and a control valve located inside the oil inlet pipe; The flow guiding unit includes an oil storage chamber and an inclined flow guiding chamber connected thereto, the cross-section of which gradually decreases along the oil outlet direction.

[0006] Through the above technical solution, the oil supply component can be continuously connected to an external oil source, and the lubricating oil can be delivered without stopping the machine. This avoids production process interruptions caused by machine stoppages during manual filling, ensures the continuity of equipment operation, and improves production efficiency.

[0007] Furthermore, the housing is rotatably connected to a bearing body, and the outlet of the inclined guide cavity is oriented toward the bearing body.

[0008] Furthermore, a connecting plate is detachably provided on one side of the housing, and the housing and the connecting plate are connected by fasteners.

[0009] Furthermore, the inner ring of the bearing body is provided with a shaft, and the oil supply assembly is arranged on the radial outer side of the shaft.

[0010] Furthermore, a quick connector is provided at the inlet end of the oil inlet pipe, and a filter assembly for filtering impurities in the lubricating oil is also provided inside the oil inlet pipe.

[0011] Furthermore, the filter assembly includes a connecting ring fixed to the inner wall of the oil inlet pipe, the connecting ring having multiple insertion holes, a filter screen at the top of the connecting ring, and a pull rod fixedly connected to the inner side of the filter screen.

[0012] Through the above technical solution, the filter screen physically filters the flowing lubricating oil, so that impurities such as metal shavings, dust, and colloids in the lubricating oil are intercepted by the filter screen, allowing clean lubricating oil to pass through the filter screen into the subsequent oil circuit, avoiding impurities from entering the bearing body with the lubricating oil and causing wear or blockage, thus ensuring the normal operation of the bearing.

[0013] Furthermore, multiple insert rods are fixed on the side of the filter screen facing the connecting ring, and each insert rod is engaged with a corresponding socket.

[0014] Furthermore, the filter screen and the oil inlet pipe are detachably connected.

[0015] With the above technical solution, when too many impurities accumulate on the surface of the filter screen (such as affecting the oil supply flow), the external pipe is first removed. The operator can then hold the pull rod on the inside of the filter screen and apply pulling force to disengage the rod from the insertion hole of the connecting ring, so that the filter screen can be removed from the oil inlet pipe for cleaning or replacement. After maintenance, the filter screen can be reinstalled by inserting the rod into the insertion hole to restore the filtering function.

[0016] In summary, this application includes at least one of the following beneficial technical effects: (1) The oil supply component of this utility model can be continuously connected to an external oil source, and can deliver lubricating oil without stopping the machine, avoiding the interruption of the production process caused by stopping the machine during manual filling, ensuring the continuity of equipment operation and improving production efficiency; (2) The filter screen of this utility model physically filters the flowing lubricating oil, so that metal chips, dust, colloids and other impurities in the lubricating oil are intercepted by the filter screen, so that the clean lubricating oil can pass through the filter screen into the subsequent oil circuit, and avoid impurities entering the bearing body with the lubricating oil, causing wear or blockage, and ensuring the normal operation of the bearing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a cross-sectional view of the shell of this utility model; Figure 4 This is a schematic diagram of the connection structure between the oil storage chamber and the inclined chamber of this utility model; Figure 5 This is a schematic diagram of the oil inlet pipe connection structure of this utility model; Figure 6 This is a schematic diagram of the connection structure between the filter screen and the connecting ring of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Bearing housing; 2. Housing; 3. Shaft; 4. Connecting plate; 5. Oil reservoir; 6. Oil inlet pipe; 7. Control valve; 8. Inclined guide cavity; 9. Bearing body; 10. Filter screen; 11. Pull rod; 12. Connecting ring; 13. Insertion hole; 14. Insert rod; 15. Connector. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] Reference Figures 1-6 An oil supply structure for a rotating shaft bearing includes a housing 2 disposed on the top of a bearing housing 1, and an oil supply assembly provided on one side of the housing 2. The oil supply assembly includes an oil supply unit connected to an oil source and a flow guiding unit for guiding the diffusion of lubricating oil; The oil supply unit includes an oil inlet pipe 6 and a control valve 7 located inside the oil inlet pipe 6; The flow guiding unit includes an oil storage chamber 5 and an inclined flow guiding chamber 8 connected thereto. The cross-section of the inclined flow guiding chamber 8 gradually decreases along the oil outlet direction.

[0021] The oil inlet pipe 6 is quickly connected to external pipelines and oil sources (such as lubricating oil pumps, oil reservoirs, etc.) via the quick connector 15 at the inlet end of the oil inlet pipe 6, ensuring a stable input of lubricating oil. When the external oil source starts and delivers lubricating oil, the control valve 7 is opened first. The lubricating oil flows along the channel of the oil inlet pipe 6, passes through the filter screen 10, and then flows into the oil storage chamber 5. The oil storage chamber 5 serves as a temporary storage and buffer, balancing possible fluctuations in the oil supply pressure from the external oil source and ensuring a stable subsequent oil supply flow. The temporarily stored lubricating oil naturally transitions from the oil storage chamber 5 to the inclined guide chamber 8 connected to it. Due to the gradually decreasing cross-sectional area of ​​the inclined guide chamber 8 along the oil outlet direction, the lubricating oil will converge as it flows through the inclined guide chamber 8, gradually increasing the flow rate. At the same time, the inclined angle also helps the lubricating oil flow towards the outlet under the combined action of gravity and pressure, avoiding stagnation in the chamber. The lubricating oil flowing out of the outlet of the inclined guide chamber 8 will flow towards the bearing body 9, which is rotatably connected inside the housing 2.

[0022] The oil supply assembly will only start after the bearing body 9 stops working. At this time, the bearing body 9 is in a stationary state, and the lubricating oil can penetrate into the interior of the bearing body 9.

[0023] Since the bearing body 9 is constantly rotating during operation, and the inclined guide cavity 8 needs to contact the bearing body 9 to allow the lubricating oil to smoothly enter the interior of the bearing body 9, one end of the inclined guide cavity 8 is thinner, and a wear-resistant alloy ring (existing technology, not shown in the figure) is embedded in the end that contacts the bearing body 9. Its hardness is lower than that of the outer ring material of the bearing body 9 to reduce friction damage. After long-term use, some wear may occur, so the bearing body 9 can be disassembled and replaced as a whole, and the wear-resistant alloy ring can also be replaced.

[0024] Reference Figures 1-2 The bearing body 9 is rotatably connected inside the housing 2. The outlet of the inclined guide cavity 8 is set towards the bearing body 9. A connecting plate 4 is detachably provided on one side of the housing 2. The housing 2 and the connecting plate 4 are connected by fasteners. A shaft 3 is provided on the inner ring of the bearing body 9. The oil supply assembly is arranged on the radial outer side of the shaft 3.

[0025] Reference Figures 5-6 The inlet end of the oil inlet pipe 6 is provided with a quick connector 15. The inside of the oil inlet pipe 6 is also provided with a filter assembly for filtering impurities in the lubricating oil. The filter assembly includes a connecting ring 12 fixed to the inner wall of the oil inlet pipe 6. The connecting ring 12 has multiple insertion holes 13. The top of the connecting ring 12 is provided with a filter screen 10. A pull rod 11 is fixedly connected to the inner side of the filter screen 10. Multiple insertion rods 14 are fixed on the side of the filter screen 10 facing the connecting ring 12. Each insertion rod 14 is inserted into the corresponding insertion hole 13. The filter screen 10 and the oil inlet pipe 6 are detachably connected.

[0026] When lubricating oil enters the pipeline through the quick connector 15 at the inlet end of the oil inlet pipe 6, it first flows through the filter assembly area. The filter screen 10 physically filters the lubricating oil, so that impurities such as metal shavings, dust, and colloids in the lubricating oil are intercepted by the filter screen 10. This allows clean lubricating oil to pass through the filter screen 10 and enter the subsequent oil circuit, preventing impurities from entering the bearing body 9 with the lubricating oil and causing wear or blockage, thus ensuring the normal operation of the bearing.

[0027] When too many impurities accumulate on the surface of the filter screen 10 (such as affecting the oil supply flow), first remove the external pipe. The operator can hold the pull rod 11 on the inside of the filter screen 10 and apply pulling force to make the insert rod 14 disengage from the insertion hole 13 of the connecting ring 12, and remove the filter screen 10 from the oil inlet pipe 6 for cleaning or replacement. After maintenance, the filter screen 10 can be reinstalled by inserting the insert rod 14 into the insertion hole 13 to restore the filtering function.

[0028] Working Principle: First, the oil inlet pipe 6 is connected to the external pipeline and oil source via the quick connector 15 at the inlet end. When the bearing body 9 stops working, the oil supply assembly starts, opening the control valve 7 inside the oil inlet pipe 6. The lubricating oil supplied by the external oil source flows along the oil inlet pipe 6 and first enters the filter assembly area. The filter screen 10 filters the flowing lubricating oil, intercepting metal debris, dust, and other impurities, allowing the clean lubricating oil to continue flowing. Subsequently, the lubricating oil flows into the oil storage chamber 5 for temporary storage. The oil storage chamber 5 balances the fluctuations in the oil supply pressure, ensuring stable subsequent flow. The temporarily stored lubricating oil enters the inclined guide chamber 8 connected to it. Because the cross-section of the inclined guide chamber 8 gradually decreases along the oil outlet direction, the lubricating oil forms a convergence effect, increasing the flow rate. At the same time, under the action of the inclined angle, it flows towards the outlet, avoiding stagnation. The lubricating oil flowing out of the inclined guide cavity 8 flows toward the bearing body 9 inside the housing 2. At this time, the bearing body 9 is in a static state, and the lubricating oil can penetrate into its interior. Then, the bearing is slowly rotated so that the gaps between its inner ring, outer ring and rolling elements can fully contact the lubricating oil and form a uniform and complete oil film coverage.

[0029] When filter screen 10 needs maintenance, first remove the external pipe. The operator then pulls out filter screen 10 using the pull rod 11, cleans or replaces it, and reinstalls it using the insertion rod 14 and insertion hole 13. If the wear-resistant alloy ring is worn, the connecting plate 4 connected to one side of the housing 2 by fasteners can be removed, and the bearing body 9 and wear-resistant alloy ring can be replaced as a whole.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oil supply structure for a rotating shaft bearing, characterized in that, include: A housing (2) is provided on the top of the bearing housing (1), and an oil supply assembly is provided on one side of the housing (2); The oil supply assembly includes an oil supply unit connected to an oil source and a flow guiding unit for guiding the diffusion of lubricating oil. The oil supply unit includes an oil inlet pipe (6) and a control valve (7) located in the oil inlet pipe (6). The flow guiding unit includes an oil storage chamber (5) and an inclined flow guiding chamber (8) connected thereto. The cross-section of the inclined flow guiding chamber (8) gradually decreases along the oil outlet direction.

2. The oil supply structure for a rotating shaft bearing according to claim 1, characterized in that: The bearing body (9) is rotatably connected inside the housing (2), and the outlet of the inclined guide cavity (8) is set toward the bearing body (9).

3. The oil supply structure for a rotating shaft bearing according to claim 1, characterized in that: A connecting plate (4) is detachably provided on one side of the housing (2), and the housing (2) and the connecting plate (4) are connected by fasteners.

4. The oil supply structure for a rotating shaft bearing according to claim 2, characterized in that: The bearing body (9) has a shaft (3) on its inner ring, and the oil supply assembly is arranged on the radial outer side of the shaft (3).

5. The oil supply structure for a rotating shaft bearing according to claim 1, characterized in that: The inlet end of the oil inlet pipe (6) is provided with a quick connector (15), and the inside of the oil inlet pipe (6) is also provided with a filter assembly for filtering impurities in the lubricating oil.

6. The oil supply structure for a rotating shaft bearing according to claim 5, characterized in that: The filter assembly includes a connecting ring (12) fixed to the inner wall of the oil inlet pipe (6), the connecting ring (12) having multiple insertion holes (13), the top of the connecting ring (12) having a filter screen (10), and the inner side of the filter screen (10) being fixedly connected to a lever (11).

7. The oil supply structure for a rotating shaft bearing according to claim 6, characterized in that: The filter screen (10) has multiple insert rods (14) fixed on the side facing the connecting ring (12), and each insert rod (14) is inserted into the corresponding socket (13).

8. The oil supply structure for a rotating shaft bearing according to claim 6, characterized in that: The filter screen (10) and the oil inlet pipe (6) are detachably connected.

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