A shaft head for easy lubrication
By designing a connecting ring with external threads and an oil leakage hole, the problem of requiring regular maintenance in traditional shaft head lubrication methods is solved, achieving automatic and uniform distribution of lubricating oil, extending shaft head life and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XINJIN AUTO PARTS CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional shaft lubrication methods require regular inspection and maintenance, increasing equipment downtime and maintenance costs. Furthermore, manually applying lubricating oil is cumbersome and increases the workload of maintenance personnel.
A connecting ring with external threads and an oil drain hole was designed. It is tightly connected to the shaft head body through threaded connection. The connecting ring has an oil storage groove and an oil drain hole inside to ensure uniform distribution of lubricating oil. Combined with mounting bolts and oil baffles, it can achieve effective utilization and sealing of lubricating oil.
It achieves automatic and uniform distribution of lubricating oil, reduces wear, extends the service life of the shaft head, reduces maintenance frequency and operation difficulty, and improves equipment operating efficiency.
Smart Images

Figure CN224414100U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaft head technology, and in particular to a shaft head that is easy to lubricate. Background Technology
[0002] Shaft ends are crucial components in mechanical equipment used for connecting and transmitting power, and are widely used in various industrial devices. During operation, shaft ends need to withstand significant friction and wear; therefore, lubrication is a key factor in ensuring their normal operation and extending their service life. Traditional shaft end lubrication methods mainly rely on external lubrication systems or manual application of lubricating oil, but these methods have some shortcomings, affecting equipment operating efficiency and maintenance costs.
[0003] Traditional lubrication systems require regular inspection and maintenance to ensure proper lubrication supply and distribution. This maintenance is typically tedious, requiring downtime and increasing equipment downtime and maintenance costs. Manual application of lubricant also necessitates frequent operations, increasing the workload and physical exertion of maintenance personnel. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a shaft head that is easy to lubricate.
[0005] This utility model is achieved by the following technical solution: a convenient lubrication shaft head, including a shaft head body, the surface of the shaft head body is provided with an external thread, the external thread is threaded to the inner wall of a connecting ring, and the bottom end of the connecting ring is provided with an oil leakage hole, and a plurality of oil leakage holes are provided.
[0006] Through the above technical solution, the external thread and the internal thread of the connecting ring are matched to achieve a tight connection between the shaft head body and the connecting ring, ensuring the stability and reliability of both. The threaded connection method facilitates quick installation and disassembly, and makes it convenient to maintain and replace the connecting ring or shaft head body. The design of the oil drain hole allows the lubricating oil in the oil reservoir to be evenly distributed on the surface of the shaft head body, ensuring that the shaft head is always in a good lubrication state during operation, reducing wear. Multiple oil drain holes are distributed at the bottom of the connecting ring to prevent lubricating oil from accumulating inside the connecting ring and ensure the effective use of lubricating oil. The connecting ring has an oil reservoir inside to store lubricating oil, and the lubricating oil is evenly distributed to the surface of the shaft head body through the oil drain holes to ensure the lubrication effect. It is connected to the shaft head body through the external thread and further fixed by the mounting bolts to ensure the firmness and stability of the connection. The design of the connecting ring makes it easier to add and replace lubricating oil. The lubricating oil can be easily replenished and sealed through the oil inlet and plug.
[0007] As a further improvement to the above solution, the top end of the connecting ring is threaded with a mounting bolt, and several mounting bolts are provided.
[0008] The above technical solution securely fixes the connecting ring to the shaft head body via a threaded connection, ensuring a more stable connection between the two and preventing loosening due to vibration or impact during operation. The design of the mounting bolts allows the position of the connecting ring to be finely adjusted as needed, ensuring the installation accuracy and operational stability of the shaft head.
[0009] As a further improvement to the above solution, an oil baffle is fixedly connected to the bottom end of the inner wall of the shaft head body.
[0010] With the above technical solution, the oil baffle is fixed to the bottom of the inner wall of the shaft head body, which can effectively prevent lubricating oil from flowing out from the bottom of the shaft head body, ensure the effective use of lubricating oil, extend the service life of lubricating oil, and the design of the oil baffle increases the internal structural stability of the shaft head body, preventing lubricating oil from splashing out due to centrifugal force or vibration during operation.
[0011] As a further improvement to the above solution, an oil inlet is provided at the left end of the connecting ring, and a plug is fitted into the inner wall of the oil inlet.
[0012] The above technical solution allows for convenient injection of lubricating oil into the oil reservoir, improving maintenance convenience. The reasonable position and size of the oil inlet facilitate lubricating oil addition by operators without affecting the normal operation of the shaft. The plug is secured to the inner wall of the oil inlet, effectively preventing lubricating oil leakage and ensuring its sealed preservation. The plug design allows for quick replacement; when lubricating oil needs to be added, the plug can be easily removed, and the seal can be resealed after addition. The operation is simple and convenient.
[0013] As a further improvement to the above solution, an oil storage groove is provided inside the connecting ring.
[0014] With the above technical solution, the oil storage groove is opened inside the connecting ring, which can store a certain amount of lubricating oil to ensure that the shaft head always has a sufficient supply of lubricating oil during operation. The design of the oil storage groove allows the lubricating oil to be evenly distributed to the surface of the shaft head body through the oil leakage hole, thereby improving the lubrication effect.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model features an oil storage groove inside the connecting ring, which can store a certain amount of lubricating oil to ensure that the shaft head always has sufficient lubricating oil supply during operation, reducing wear and extending the service life of the shaft head. Several oil leakage holes are provided at the bottom of the connecting ring, through which lubricating oil can be evenly distributed on the surface of the shaft head body to ensure lubrication effect.
[0017] This utility model has an oil baffle plate fixedly connected to the bottom of the inner wall of the shaft head body, which can prevent lubricating oil from leaking from the bottom of the shaft head body and ensure the effective use of lubricating oil. The connecting ring is connected to the shaft head body through external thread, and the mounting bolt further fixes the connecting ring to ensure the firmness and stability of the connection.
[0018] An oil inlet is provided at the left end of the connecting ring, through which lubricating oil can be easily added. A plug is fitted into the inner wall of the oil inlet to prevent lubricating oil leakage and to facilitate maintenance and replacement. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the oil inlet structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the external thread structure of this utility model;
[0023] Figure 5 This is a cross-sectional structural diagram of the present invention.
[0024] Explanation of key symbols:
[0025] 1. Shaft head body; 2. External thread; 3. Oil baffle; 4. Connecting ring; 5. Mounting bolt; 6. Oil inlet; 7. Plug; 8. Oil reservoir; 9. Oil leakage hole. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example:
[0027] Please combine Figure 1-5 This embodiment provides a convenient lubrication shaft head, including a shaft head body 1. The surface of the shaft head body 1 is provided with an external thread 2, which is threaded to the inner wall of a connecting ring 4. The bottom end of the connecting ring 4 is provided with an oil leakage hole 9, and several oil leakage holes 9 are provided.
[0028] The top of the connecting ring 4 is threaded with mounting bolts 5, and there are several mounting bolts 5.
[0029] An oil baffle 3 is fixedly connected to the bottom of the inner wall of the shaft head body 1.
[0030] The left end of the connecting ring 4 has an oil inlet 6.
[0031] The inner wall of oil inlet 6 is fitted with a plug 7.
[0032] An oil storage tank 8 is provided inside the connecting ring 4.
[0033] The implementation principle of a convenient lubrication shaft head in this embodiment is as follows: lubricating oil is injected into the oil storage groove 8 inside the connecting ring 4 through the oil inlet 6. The oil storage groove 8 can store a certain amount of lubricating oil to ensure that the shaft head always has sufficient lubricating oil supply during operation. The lubricating oil in the oil storage groove 8 is evenly distributed on the surface of the shaft head body 1 through the oil leakage hole 9 at the bottom of the connecting ring 4, ensuring that the shaft head is always in a good lubrication state during operation. The lubricating oil is injected into the oil storage groove 8 through the oil inlet 6. The design of the oil inlet 6 facilitates the addition of lubricating oil and improves the convenience of maintenance. A plug 7 is snapped into the inner wall of the oil inlet 6. After the lubricating oil is added, the plug 7 can seal the oil inlet 6 to prevent lubricating oil leakage and ensure the effective use of lubricating oil. An oil baffle 3 is fixedly connected to the bottom of the inner wall of the shaft head body 1 to prevent lubricating oil from flowing out from the bottom of the shaft head body 1, ensuring the effective use of lubricating oil and extending the service life of lubricating oil. The surface of the shaft head body 1 is provided with external threads 2. The connecting ring 4 is connected to the shaft head body 1 through the external threads 2 to ensure the firmness of the connection. Several mounting bolts 5 are threaded to the top of the connecting ring 4 to further fix the connecting ring 4 and ensure the stability and reliability of the connection.
[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A shaft end that is easy to lubricate, characterized in that, The shaft head body (1) is provided with an external thread (2) on its surface. The external thread (2) is threaded to the inner wall of the connecting ring (4). The bottom end of the connecting ring (4) is provided with an oil leakage hole (9). There are several oil leakage holes (9).
2. The convenient lubrication shaft head as described in claim 1, characterized in that: The top end of the connecting ring (4) is threaded with a mounting bolt (5), and there are several mounting bolts (5).
3. The convenient lubrication shaft head as described in claim 1, characterized in that: An oil baffle (3) is fixedly connected to the bottom of the inner wall of the shaft head body (1).
4. The convenient lubrication shaft head as described in claim 1, characterized in that: The left end of the connecting ring (4) has an oil inlet (6).
5. A conveniently lubricated shaft head as described in claim 4, characterized in that: A plug (7) is fitted into the inner wall of the oil inlet (6).
6. A conveniently lubricated shaft head as described in claim 1, characterized in that: An oil storage groove (8) is provided inside the connecting ring (4).