A system for lubricating a bearing
By designing a thin oil lubrication system, the roller bearings can be lubricated without disassembly, solving the problems of frictional heat generation and wear, and improving the production efficiency and equipment stability of coal mining machinery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA TIANWEI HUAXIN ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-07-03
AI Technical Summary
Existing coal mining machinery roller bearings suffer from frictional heat and wear during long-term continuous operation. Traditional disassembly and lubrication methods lead to additional wear, complex operation, long downtime, and high costs.
Design a thin oil lubrication system that precisely delivers lubricating oil to the roller bearings and the contact surface of the spindle through horizontal and bent channels inside the spindle, and is equipped with a filter assembly to remove impurities, enabling lubrication operation without disassembly.
It effectively reduces friction and wear, extends bearing life, simplifies operation procedures, reduces labor intensity for workers, reduces downtime, improves production efficiency, and ensures stable operation of the coal feeder.
Smart Images
Figure CN224454277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mining machinery and equipment technology, and more specifically, to a thin oil lubrication system. Background Technology
[0002] In modern coal mining, various types of coal mining machinery have emerged to ensure the efficient progress of mining operations. The coal feeder, as one of the key pieces of equipment, is crucial for stable operation. During long-term continuous operation, the rollers of the coal feeder bear the critical task of material transport, constantly rotating at high speed. This continuous operation puts the bearings inside the rollers under severe stress. With accumulated use, the roller bearings generate heat due to friction, leading to not only increased temperature but also severe wear and the continuous accumulation of impurities. Currently, most manufacturers generally disassemble the rollers as a whole for lubrication and maintenance, followed by manual lubrication. However, this traditional method has many drawbacks. On the one hand, frequent disassembly of the rollers easily causes additional wear on the bearings, affecting their precision and service life. On the other hand, the disassembly and installation process is cumbersome and complex, consuming a lot of manpower and time, resulting in long equipment downtime, severely slowing down the production pace, reducing overall production efficiency, and increasing enterprise operating costs. Utility Model Content
[0003] In view of this, this utility model addresses the shortcomings of the prior art by proposing a thin oil lubrication system, aiming to solve at least one of the problems mentioned in the background art.
[0004] This utility model provides a thin oil lubrication system, including: a roller bearing;
[0005] The main shaft has a roller bearing sleeved on the outer side wall of the main shaft. The inner wall of the roller bearing is rotatably and sealed to the side wall of the main shaft. The main shaft has a lubrication channel inside. The two ends of the lubrication channel are respectively provided with an inlet and an outlet. A filter assembly is provided at the inlet.
[0006] In some embodiments, the inlet is provided with a first connector and the outlet is provided with a second connector.
[0007] In some embodiments, the lubrication channel includes a horizontal channel and a plurality of bent channels, wherein the plurality of bent channels are disposed between the two ends of the horizontal channel and are interconnected with the horizontal channel.
[0008] In some embodiments, the plurality of the bending channels are respectively connected to the contact surfaces of the roller bearing and the spindle.
[0009] In some embodiments, the plurality of the bent channels are connected in series with the horizontal channel.
[0010] In some embodiments, the filtering component includes:
[0011] The funnel, with its bottom designed to communicate with the first connector;
[0012] A filter screen is disposed inside the funnel, and the sidewall of the filter screen abuts and adheres to the inner wall of the funnel.
[0013] In some embodiments, two limiting blocks are symmetrically arranged on the inner wall of the funnel, and the two limiting blocks are respectively fixedly connected to the inner wall of the funnel.
[0014] In some embodiments, the sidewall of the filter screen is provided with two limiting grooves corresponding to the two limiting blocks.
[0015] In some embodiments, the top of the filter screen abuts against the bottom of the two limiting blocks.
[0016] In some embodiments, the outlet is located at the top of the spindle.
[0017] Compared with existing technologies, the advantages of this utility model are as follows: Through the horizontal channels and multiple bent channels inside the main shaft, thin oil lubricating oil can be precisely delivered to the contact surfaces of the roller bearings and the main shaft, ensuring sufficient lubrication of key parts, effectively reducing friction and wear, extending the service life of the roller bearings, and ensuring stable operation of the coal feeder. Lubrication of the bearings can be performed without disassembling the rollers, greatly simplifying the operation process, reducing worker labor intensity, minimizing equipment downtime, significantly improving production efficiency, and enabling the coal feeder to return to production operations more quickly compared to traditional disassembly lubrication methods. A filter assembly is installed at the inlet, with a removable filter screen that effectively removes impurities from the thin oil lubricating oil, preventing impurities from entering the lubrication channels and damaging the bearings, ensuring the cleanliness of the lubricating oil, and further improving the lubrication effect and bearing reliability. The rational layout of the lubrication channels, such as the series connection of horizontal and bent channels, makes the lubricating oil distribution more uniform; the inlet and outlet are respectively equipped with first and second connectors to facilitate the injection and discharge of lubricating oil, enhancing the practicality and stability of the system. The limiting block on the inner wall of the funnel cooperates with the limiting groove on the side wall of the filter screen, which facilitates the installation and removal of the filter screen and is conducive to regular cleaning and maintenance.
[0018] The above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.
[0019] Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 A front structural cross-sectional view of the thin oil lubrication system provided in an embodiment of this utility model;
[0022] Figure 2 A front structural cross-sectional view of the filter assembly of the thin oil lubrication system provided in an embodiment of this utility model;
[0023] Figure 3 A top view of the funnel of the thin oil lubrication system provided in an embodiment of this utility model;
[0024] Figure 4 A top view of the filter screen of the thin oil lubrication system provided in an embodiment of this utility model.
[0025] The components include: 1. Roller bearing; 2. Main shaft; 3. Liquid inlet; 4. Liquid outlet; 5. First connector; 6. Second connector; 7. Horizontal channel; 8. Bent channel; 9. Funnel; 10. Filter screen; 11. Limiting block; 12. Limiting groove. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0027] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] See Figure 1-4 As shown, a thin oil lubrication system according to an embodiment of this application includes:
[0031] Roller bearing 1;
[0032] The main shaft 2 has a roller bearing 1 sleeved on the outer side wall of the main shaft 2. The inner wall of the roller bearing 1 is rotatably and sealed to the side wall of the main shaft 2. The main shaft 2 has a lubrication channel inside. The two ends of the lubrication channel are respectively provided with a liquid inlet 3 and a liquid outlet 4. A filter assembly is provided at the liquid inlet 3.
[0033] In some specific embodiments, the liquid inlet 3 is provided with a first connector 5, and the liquid outlet 4 is provided with a second connector 6.
[0034] It should be understood that in actual operation, when it is necessary to inject thin lubricating oil into the lubrication system, the external lubricating oil delivery equipment, such as an oil pump or oil tank, can be quickly, securely, and sealed to the inlet 3 through the first connector 5. In this invention, the first connector 5 is connected to the funnel 9. Under pressure, the lubricating oil smoothly enters the lubrication channel inside the main shaft 2 through the first connector 5. Subsequently, the lubricating oil flows along the horizontal channel 7 and multiple interconnected and series-connected bent channels 8, fully lubricating the contact surface between the roller bearing 1 and the main shaft 2, and carrying away the heat and impurities generated by friction. After lubrication, the lubricating oil, carrying the impurities cleaned from the contact surface, converges along the bent channels 8 to the horizontal channel 7, and is finally discharged to the external waste oil collection device or subsequent oil treatment system through the second connector 6 at the outlet 4. The entire process, with the help of these two connectors, achieves the orderly circulation of lubricating oil within the lubrication system, ensuring that the roller bearing is always in a good lubrication state.
[0035] In some specific embodiments, the lubrication channel includes a horizontal channel 7 and a plurality of bent channels 8, wherein the plurality of bent channels 8 are disposed between the two ends of the horizontal channel 7 and are interconnected with the horizontal channel 7.
[0036] In some specific embodiments, the plurality of the bending channels 8 are respectively connected to the contact surfaces of the roller bearing 1 and the main shaft 2.
[0037] In some specific embodiments, multiple bending channels 8 are connected in series with the horizontal channel 7.
[0038] It should be understood that in actual operation, when the thin oil lubricating oil is injected through the inlet 3, it first enters the horizontal channel 7. Since multiple bend channels 8 are interconnected and connected in series with the horizontal channel 7, the lubricating oil, under pressure or gravity, flows along the horizontal channel 7 into the first bend channel 8. The design of the bend channels 8 allows them to precisely guide the lubricating oil to the contact surfaces of the roller bearing 1 and the spindle 2, lubricating these two critical components and removing heat generated by friction and impurities caused by wear. After the lubricating oil flows through the first bend channel 8 and completes its lubrication of the corresponding parts, it continues to flow into the next bend channel 8 in series, repeating the above lubrication process until it has flowed through all the bend channels 8, and finally is discharged through the outlet 4.
[0039] Multiple bent channels 8 are connected in series with horizontal channels 7 and are respectively connected to the contact surfaces of the roller bearing 1 and the main shaft 2. This layout ensures that the lubricating oil is evenly distributed across the entire contact surface. This avoids problems such as dry friction and excessive wear caused by insufficient lubrication in certain areas, effectively extending the service life of the roller bearing and the main shaft, and ensuring the stable operation of key components of the coal feeder. Through the rationally designed bent channels 8, the lubricating oil can reach the parts that need lubrication more precisely, reducing the flow and waste of lubricating oil in non-critical areas and improving the utilization rate of lubricating oil. At the same time, this precise lubrication method can more effectively reduce the coefficient of friction, quickly dissipate the heat generated by friction, and allow the roller bearing and the main shaft to operate in a good lubrication environment, thereby improving the overall working efficiency of the coal feeder.
[0040] In some specific embodiments, the filtering component includes:
[0041] Funnel 9, the bottom of which is used to communicate with the first connector 5;
[0042] A filter screen 10 is disposed inside the funnel 9, and the side wall of the filter screen 10 abuts against and fits against the inner wall of the funnel 9.
[0043] In some specific embodiments, two limiting blocks 11 are symmetrically arranged on the inner wall of the funnel 9, and the two limiting blocks 11 are respectively fixedly connected to the inner wall of the funnel 9.
[0044] In some specific embodiments, the sidewall of the filter screen 10 is provided with two limiting grooves 12 corresponding to the two limiting blocks 11.
[0045] In some specific embodiments, the top of the filter screen 10 abuts against the bottom of the two limiting blocks 11.
[0046] In some specific embodiments, the liquid outlet 4 is located at the top of the main shaft 2.
[0047] It should be understood that when a thin oil lubricant needs to be injected into the lubrication system, the lubricant first enters the funnel 9 through the first connector 5. The shape of the funnel 9 allows the oil to flow relatively concentratedly to its bottom, and then into the lubrication channel inside the main shaft 2. During the flow of the oil through the funnel 9, the filter screen 10 installed inside the funnel 9 filters the oil. The sidewall of the filter screen 10 abuts against the inner wall of the funnel 9, ensuring that the oil can only pass through the mesh of the filter screen 10. This intercepts larger particles and impurities in the oil, keeping the oil entering the lubrication channel relatively clean. The two limiting blocks 11 symmetrically arranged on the inner wall of the funnel 9 and the two corresponding limiting grooves 12 on the sidewall of the filter screen 10 cooperate with each other to fix the filter screen 10. When the filter screen 10 is installed, the limiting groove 12 is aligned with the limiting block 11. As the filter screen 10 is placed downwards, the bottom of the limiting block 11 abuts against the top of the filter screen 10, thereby stably fixing the filter screen 10 inside the funnel 9, preventing it from shifting under conditions such as oil impact, and ensuring the continuity of the filtration effect.
[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. An oil lubrication system, characterized in that, include: Roller bearings; The main shaft has a roller bearing sleeved on the outer side wall of the main shaft. The inner wall of the roller bearing is rotatably and sealed to the side wall of the main shaft. The main shaft has a lubrication channel inside. The two ends of the lubrication channel are respectively provided with an inlet and an outlet. A filter assembly is provided at the inlet.
2. The oil lubrication system according to claim 1, wherein The inlet is provided with a first connector, and the outlet is provided with a second connector.
3. The oil lubrication system according to claim 2, wherein The lubrication channel includes a horizontal channel and multiple bends, with the multiple bends positioned between the two ends of the horizontal channel and interconnected with each other.
4. The oil lubrication system according to claim 3, wherein The multiple bending channels are respectively connected to the contact surfaces of the roller bearing and the main shaft.
5. A thin oil lubrication system according to claim 4, characterized in that, Multiple of the aforementioned bent channels are connected in series with the aforementioned horizontal channel.
6. The oil lubrication system according to claim 5, wherein The filtering component includes: The funnel, with its bottom designed to communicate with the first connector; A filter screen is disposed inside the funnel, and the sidewall of the filter screen abuts and adheres to the inner wall of the funnel.
7. The oil lubrication system of claim 6, wherein The funnel has two symmetrically arranged limiting blocks on its inner wall, and the two limiting blocks are fixedly connected to the inner wall of the funnel respectively.
8. The oil lubrication system according to claim 7, wherein The sidewall of the filter screen is provided with two limiting grooves corresponding to the two limiting blocks.
9. The oil lubrication system of claim 8, wherein, The top of the filter screen abuts against the bottom of the two limiting blocks.
10. The oil lubrication system of claim 9, wherein The liquid outlet is located at the top of the main shaft.