A rotating shaft facilitating lubrication maintenance
Patent Information
- Application Number
- CN202620028488.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2036-01-12
AI Technical Summary
Existing shafts that are designed for easy lubrication and maintenance lack a lubrication control device, making it impossible to effectively control the oil supply during periods when lubrication is not required. This results in oil waste, and oil replenishment requires complete disassembly, making maintenance inconvenient.
The sliding rod and the first spring work together to switch the opening and closing of the lubricating oil passage. The limit ring and the second spring work together to achieve quick docking and sealed oil injection of the oil gun, avoiding lubricating oil leakage. The grease replenishment operation can be completed without disassembling the rotating shaft.
It achieves precise control of lubricating oil, avoids oil waste during non-lubrication periods, improves the convenience of lubrication maintenance and the stability of the oil injection process, and reduces operation and maintenance costs.
Smart Images

Figure CN224932040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotating shaft technology that facilitates lubrication and maintenance, and in particular to a rotating shaft that facilitates lubrication and maintenance. Background Technology
[0002] The easy-to-lubricate and maintain shaft not only has the basic functions of transmitting torque and ensuring stable coaxial rotation, but also achieves convenient lubrication without disassembly through structural optimization. It can accurately supply grease, reduce costs and failures, and extend service life. It is suitable for harsh working conditions and long-term operation and maintenance, and is widely used in key equipment in fields such as industrial transmission and conveying, general light industry and special equipment, and rail transportation that require long-term operation and are difficult to maintain.
[0003] However, existing technologies for easy lubrication and maintenance of shafts generally lack lubrication control devices, making it impossible to effectively control oil supply during non-lubrication periods, which easily leads to lubrication waste. At the same time, most of these shafts are not equipped with dedicated oil filling pipes, and the entire shaft must be disassembled to replenish lubrication oil. This is not only cumbersome, time-consuming and labor-intensive, but also easily damages the shaft's fit precision and sealing structure, significantly reducing maintenance efficiency and increasing operation and maintenance costs, making it difficult to meet the needs of convenient and efficient lubrication and maintenance of equipment. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies. Existing shafts that are easy to lubricate and maintain lack a lubrication control device, cannot be stopped when not lubricated, easily waste oil, and do not have a dedicated oil filling pipe. Replenishing oil requires complete disassembly, which is inconvenient for maintenance. This invention provides a shaft that is easy to lubricate and maintain.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotating shaft that is easy to lubricate and maintain, comprising a main body mechanism, an adjustment mechanism provided on one side of the main body mechanism, and a plug-in mechanism provided on the other side of the main body mechanism. The adjustment mechanism includes a housing mounted on the outer surface of the main body mechanism, a ring fixedly connected to the outer surface of the housing, a groove provided on the inner wall of the ring, a slide rod slidably connected to the top of the ring, a limit block fixedly connected to the top of the ring, a limit groove provided on the surface of the limit block, a positioning block fixedly connected to the outer surface of the slide rod, and a first spring provided on the inner wall of the ring.
[0006] In a preferred embodiment, the insertion / removal mechanism includes an oil injection pipe installed at the bottom of the main body, with one end of the oil injection pipe fixedly connected through to one side of the ring.
[0007] In a preferred embodiment, a second spring is sleeved on the outer surface of the oil injection pipe, and a limit ring is slidably connected to the outer surface of the oil injection pipe.
[0008] In a preferred embodiment, a limiting ring is fixedly connected to the outer surface of the limiting ring, and a fixing block is slidably connected through the outer surface of the oil injection pipe.
[0009] In a preferred embodiment, a button is fixedly connected to the top of the slide rod, and the bottom end of the slide rod is engaged with the outer surface of the housing.
[0010] In a preferred embodiment, one end of the first spring is fixedly connected to the inner wall of the ring, and the other end of the first spring is fixedly connected to the outer surface of the slide rod.
[0011] In a preferred embodiment, one end of the second spring is fixedly connected to the outer surface of the oil injection pipe, and the other end of the second spring is fixedly connected to one side of the limiting ring.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model features a sliding rod that works in conjunction with a first spring. In its normal state, the bottom end of the sliding rod can be engaged with a pre-set hole on the surface of the outer casing. By changing the engagement or disengagement state of the sliding rod and the outer casing, the flow of lubricating oil can be switched on and off, precisely controlling the inflow or outflow of lubricating oil and effectively avoiding oil waste during non-lubrication periods. The limiting ring and the second spring work together to drive the limiting ring of the inner ring of the limiting ring to tightly engage with the fixing block, thereby firmly locking the oil outlet of the oil gun. This enables quick docking and sealed oil injection of the oil gun, allowing for grease replenishment without disassembling the rotating shaft, greatly improving the convenience of lubrication maintenance and ensuring a stable and leak-free oil injection process. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a rotating shaft that is easy to lubricate and maintain, as provided by this utility model.
[0014] Figure 2 This is a schematic diagram of the overall structure of a rotating shaft that is easy to lubricate and maintain, provided by this utility model.
[0015] Figure 3 This utility model provides a schematic diagram of an adjustment mechanism for a rotating shaft that facilitates lubrication and maintenance.
[0016] Figure 4 This is a schematic diagram from another perspective of the adjustment mechanism for a rotating shaft that facilitates lubrication and maintenance, provided by this utility model.
[0017] Figure 5 A schematic diagram of a shaft insertion / removal mechanism for easy lubrication and maintenance provided by this utility model.
[0018] Legend: 1. Main structure; 2. Adjustment mechanism; 3. Insertion / removal mechanism; 11. Outer shell; 12. Ring; 13. Groove; 21. Slide rod; 22. Button; 23. Limiting block; 24. Limiting groove; 25. Positioning block; 26. First spring; 31. Limiting ring; 32. Oil injection pipe; 33. Fixing block; 34. Second spring; 35. Limiting ring. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1 like Figure 1-5 As shown, this utility model provides a technical solution: a rotating shaft that is easy to lubricate and maintain, including a main body 1, an adjustment mechanism 2 is provided on one side of the main body 1, and a plug-in mechanism 3 is provided on the other side of the main body 1. The adjustment mechanism 2 includes a housing 11 installed on the outer surface of the main body 1. A ring 12 is fixedly connected to the outer surface of the housing 11. A groove 13 is provided on the inner wall of the ring 12. A slide rod 21 is slidably connected to the top of the ring 12. A limit block 23 is fixedly connected to the top of the ring 12. A limit groove 24 is provided on the surface of the limit block 23. A positioning block 25 is fixedly connected to the outer surface of the slide rod 21. A first spring 26 is provided on the inner wall of the ring 12.
[0021] In this embodiment, the slide rod 21 is slidably connected to the inner wall of the ring 12, and its bottom passes through the ring 12 and the outer shell 11 in sequence. The bottom end can form a snap-fit connection with the surface of the outer shell 11, thereby realizing the on / off control of the lubricating oil passage. The surface of the limiting block 23 is provided with a limiting groove 24, which allows the positioning block 25 fixed on the surface of the slide rod 21 to slide, and at the same time realizes the limiting and fixing of the positioning block 25. The outer surface of the slide rod 21 at the corresponding position of the inner wall of the ring 12 is fitted with a first spring 26. The first spring 26 can continuously provide a downward force to the slide rod 21, effectively enhancing the snap-fit stability between the positioning block 25 and the limiting groove 24, ensuring that the lubricating oil on / off control state does not loosen, ensuring accurate and reliable lubrication control during the operation of the device, and avoiding lubricating oil leakage or interruption under unnecessary working conditions.
[0022] Example 2 like Figure 1-5As shown, the insertion / removal mechanism 3 includes an oil injection pipe 32 installed at the bottom of the main body mechanism 1. One end of the oil injection pipe 32 is fixedly connected to one side of the ring 12. A second spring 34 is sleeved on the outer surface of the oil injection pipe 32. A limit ring 35 is slidably connected to the outer surface of the oil injection pipe 32. A limit ring 31 is fixedly connected to the outer surface of the limit ring 35. A fixing block 33 is slidably connected to the outer surface of the oil injection pipe 32. A button 22 is fixedly connected to the top of the slide rod 21. The bottom end of the slide rod 21 is engaged with the outer surface of the outer shell 11. One end of the first spring 26 is fixedly connected to the inner wall of the ring 12, and the other end of the first spring 26 is fixedly connected to the outer surface of the slide rod 21. One end of the second spring 34 is fixedly connected to the outer surface of the oil injection pipe 32, and the other end of the second spring 34 is fixedly connected to one side of the limit ring 35.
[0023] In this embodiment, one end of the oil injection pipe 32 is fixedly connected to the surface of the ring 12, and the other end passes through the groove 13 inside the ring 12. Lubricating oil can be injected through the oil injection pipe 32 and stored in the groove 13. A second spring 34 is sleeved on the outer surface of the oil injection pipe 32. The spring continuously applies an outward elastic force to the limiting ring 31 that is slidably mounted on the surface of the oil injection pipe 32, thereby driving the fixing block 33 to clamp the oil injection port of the oil injection gun, realizing the stable fixation of the oil injection gun, ensuring that the oil injection process is smooth and without loosening, effectively preventing leakage and falling off during oil injection, ensuring accurate oil injection, and completing lubrication and oil replenishment without disassembling the rotating shaft, greatly improving the convenience of maintenance and the reliability of oil injection.
[0024] Working principle: like Figure 1-5As shown, when lubricating oil needs to be injected into the device, the limiting ring 31 is first pushed inward. While the limiting ring 31 slides on the outer surface of the oil injection pipe 32, it drives the associated limiting ring 35 to move synchronously, and exerts a squeezing effect on the second spring 34 sleeved on the outer surface of the oil injection pipe 32. At this time, the fixed block 33, which was originally constrained by the limiting ring 31, loses its limit and enters a movable state, which can smoothly adapt to the insertion action of the oil injection port of the oil injection gun. The injected lubricating oil can flow directly into the preset groove 13 inside the ring 12 for storage. When it is necessary to supply oil to the inside of the rotating shaft, the button 22 is pulled upward first. The button 22 drives the slide rod 21 fixedly connected to it to slide upward synchronously. The bottom of the slide rod 21 gradually disengages from the locking structure with the surface of the outer shell 11. After the positioning block 25 fixed on the surface of the slide rod 21 has completely slid out of the currently adapted sliding limit groove 24, turn the button 22 and drive the slide rod 21 to rotate together until the positioning block 25 is aligned with the target limit groove 24 to achieve the limit fixation. At this time, release the pulling force on the button 22. Under the return force of the first spring 26 sleeved on its outer surface, the slide rod 21 rebounds downward until the positioning block 25 is accurately engaged in the target limit groove 24, realizing the stable limit fixation of the slide rod 21. At this time, the oil passage on the surface of the outer shell 11 is opened, and the lubricating oil stored in the groove 13 flows continuously into the inside of the rotating shaft through the preset oil hole on the surface of the outer shell 11, completing the precise oil supply operation.
[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A rotating shaft that is easy to lubricate and maintain, comprising a main body mechanism (1), characterized in that, An adjustment mechanism (2) is provided on one side of the main body (1), and a plug-in mechanism (3) is provided on the other side of the main body (1). The adjustment mechanism (2) includes a housing (11) installed on the outer surface of the main body (1). A ring (12) is fixedly connected to the outer surface of the housing (11). A groove (13) is provided on the inner wall of the ring (12). A slide rod (21) is slidably connected to the top of the ring (12). A limit block (23) is fixedly connected to the top of the ring (12). A limit groove (24) is provided on the surface of the limit block (23). A positioning block (25) is fixedly connected to the outer surface of the slide rod (21). A first spring (26) is provided on the inner wall of the ring (12).
2. The rotating shaft according to claim 1, characterized in that: The insertion / removal mechanism (3) includes an oil injection pipe (32) installed at the bottom of the main body mechanism (1), with one end of the oil injection pipe (32) fixedly connected to one side of the ring (12).
3. A rotating shaft that is easy to lubricate and maintain according to claim 2, characterized in that: The outer surface of the oil injection pipe (32) is fitted with a second spring (34), and the outer surface of the oil injection pipe (32) is slidably connected with a limit ring (35).
4. A rotating shaft that is easy to lubricate and maintain according to claim 3, characterized in that: The outer surface of the limiting ring (35) is fixedly connected to the limiting ring (31), and the outer surface of the oil injection pipe (32) is slidably connected to the fixing block (33).
5. A rotating shaft that is easy to lubricate and maintain according to claim 1, characterized in that: A button (22) is fixedly connected to the top of the slide bar (21), and the bottom end of the slide bar (21) is engaged with the outer surface of the housing (11).
6. A rotating shaft that is easy to lubricate and maintain according to claim 1, characterized in that: One end of the first spring (26) is fixedly connected to the inner wall of the ring (12), and the other end of the first spring (26) is fixedly connected to the outer surface of the slide rod (21).
7. A rotating shaft that is easy to lubricate and maintain according to claim 3, characterized in that: One end of the second spring (34) is fixedly connected to the outer surface of the oil injection pipe (32), and the other end of the second spring (34) is fixedly connected to one side of the limiting ring (35).
