Automatic oiling ball screw module
By designing an automatic oiling ball screw module, the problem of unsatisfactory oiling effect of ball screws was solved, achieving high precision, high efficiency, and high stability transmission effects, and extending the service life of the module.
Patent Information
- Application Number
- CN202422849851.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing ball screw lubrication structures are simplistic and have unsatisfactory lubrication effects, which affect the accuracy and service life of the ball screw.
An automatic oiling ball screw module was designed, including a ball screw, a ball nut, and an oiling assembly. Through the cooperation of the oiling chamber, oiling pipe, and oiling port, the lubricating oil is accurately delivered. The squeezing action of the oiling screw ensures that the lubricating oil reaches the transmission balls. Combined with the design of the retaining element, the orderly arrangement of the transmission balls and the lubrication effect are ensured.
It achieves high precision, high efficiency, and high stability in transmission, reduces friction and wear, and extends the service life of the module.
Smart Images
Figure CN223498634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated transmission components technology, and in particular to an automatic oiling ball screw module. Background Technology
[0002] Ball screw lubrication refers to the process of lubricating the ball screw, which is an important measure to maintain its performance and extend its service life. As a transmission device, the ball screw is widely used in machine tools, plastics machinery, woodworking machinery, and electronic equipment. During normal operation, the ball screw will experience some friction and wear. Regular lubrication can effectively reduce this friction and wear, improving the working efficiency and accuracy of the ball screw.
[0003] Existing ball screw lubrication structures are relatively simple and the lubrication effect is unsatisfactory, affecting the accuracy and service life of the ball screw. Therefore, new improvements are needed to the existing ball screw structure. Utility Model Content
[0004] To solve the above problems, this utility model achieves high precision, high efficiency, and high stability in transmission. At the same time, through continuous lubrication, it effectively extends the service life of the module by providing an automatic oiling ball screw module.
[0005] The technical solution adopted by this utility model is: an automatic oiling ball screw module, including a ball screw, a ball nut, and an oiling assembly. The ball nut is movably mounted on the ball screw and drives along the length of the ball screw. A retaining element is provided on the ball screw, and a drive ball is provided on the retaining element. The drive ball is in rolling connection with the ball screw. The oiling assembly includes an oiling cavity, an oiling pipe, and an oiling port provided on the ball nut. The oiling pipe is used to guide the lubricating oil in the oiling cavity toward the retaining element. The oiling port is used to inject lubricating oil. An oiling screw is provided in the oiling cavity, and the oiling screw is used to squeeze the lubricating oil in the oiling cavity toward the retaining element.
[0006] A further improvement to the above solution is that the ball screw is provided with a screw groove, and the bottom surface of the screw groove is provided with an oil storage groove, the oil storage groove being a U-shaped groove, and the screw groove being used for sliding connection of the transmission balls.
[0007] A further improvement to the above scheme is that the opening of the oil storage tank is provided with an R-angle.
[0008] A further improvement to the above solution is that the ball nut includes a mounting platform and a connecting column. The mounting platform is disposed on one side of the connecting column, and the retaining element is centrally disposed at the axis of the ball nut and passes through the mounting platform and the connecting column in sequence.
[0009] A further improvement to the above solution is that an installation platform is provided on one side of the connecting column, and the oil injection component is installed on the installation platform.
[0010] A further improvement to the above scheme is that the oil injection screw is provided with at least one section of extrusion thread blade. When the extrusion screw rotates, it drives the extrusion thread blade to rotate, thereby driving the lubricating oil in the oil injection chamber to be squeezed toward the holding element.
[0011] A further improvement to the above scheme is that a connecting bushing is provided at one end of the oil injection screw, and the connecting bushing is used to fix the oil injection screw in the oil injection chamber.
[0012] A further improvement to the above solution is that the oil injection port is provided with an oil injection plug, which is a nut screw.
[0013] A further improvement to the above scheme is that the oil injection pipe is provided in two sets to inject oil into the transmission balls at different positions.
[0014] A further improvement to the above scheme is that one end of the oil injection screw is connected to a driving element, which is used to drive the oil injection screw to rotate, so as to drive the lubricating oil in the oil injection chamber to squeeze towards the holding element. The driving element is a micro motor.
[0015] The beneficial effects of this utility model are:
[0016] Compared to existing ball screw modules, this invention achieves precise transmission along the length of the ball screw through the movable arrangement of the ball nut on the ball screw. This rolling contact method not only reduces frictional resistance but also greatly improves the smoothness and accuracy of transmission, providing strong support for precision mechanical operations. The retaining element and transmission balls on the ball screw further enhance the stability and durability of the transmission. The rolling connection between the transmission balls and the ball screw effectively distributes the load, reduces wear, and thus extends the service life of the module. At the same time, the introduction of the retaining element ensures the orderly arrangement of the transmission balls during operation, avoiding mutual interference between the balls and further improving transmission efficiency.
[0017] The lubrication assembly provides continuous and effective lubrication for the module. The coordinated use of the lubrication chamber, lubrication pipe, and lubrication port ensures precise delivery of lubricating oil to the retaining elements and transmission balls, effectively reducing the coefficient of friction, minimizing heat generation, and improving transmission efficiency. In particular, the introduction of the lubrication screw, through its squeezing action, ensures that the lubricating oil in the lubrication chamber is fully utilized, preventing waste and drying. This invention achieves high-precision, high-efficiency, and high-stability transmission, while continuously ensuring lubrication effectively extends the module's service life. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the automatic oiling ball screw module of this utility model;
[0019] Figure 2 for Figure 1 A three-dimensional schematic diagram of the automatic oiling ball screw module from another perspective;
[0020] Figure 3 for Figure 1 Front view schematic diagram of the automatic oiling ball screw module;
[0021] Figure 4 for Figure 3 Sectional view of AA.
[0022] Explanation of reference numerals in the attached drawings: 1. Ball screw; 11. Holding element; 12. Transmission ball; 13. Screw groove; 13. Oil reservoir; 131. Ball nut; 2. Mounting platform; 21. Connecting column; 22. Mounting platform; 221. Oil injection assembly; 3. Oil injection chamber; 31. Oil injection pipe; 32. Oil injection port; 33. Oil injection plug; 331. Oil injection screw; 34. Extrusion threaded blade; 341. Connecting bushing; 342. Drive element; 343. Detailed Implementation
[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0026] like Figures 1-4As shown, in one embodiment of this utility model, an automatic oiling ball screw module is disclosed, including a ball screw 1, a ball nut 2, and an oiling assembly 3. The ball nut 2 is movably mounted on the ball screw 1 and drives along the length of the ball screw 1. A retaining element 11 is provided on the ball screw 1, and a transmission ball 12 is provided on the retaining element 11, the transmission ball 12 being rolledly connected to the ball screw 1. The oiling assembly 3 includes an oiling cavity 31, an oiling pipe 32, and an oiling port 33 disposed on the ball nut 2. The oiling pipe 32 is used to guide the lubricating oil in the oiling cavity 31 toward the retaining element 11, and the oiling port 33 is used to inject lubricating oil. An oiling screw 34 is disposed in the oiling cavity 31, and the oiling screw 34 is used to squeeze the lubricating oil in the oiling cavity 31 toward the retaining element 11. This embodiment achieves precise transmission along the length of the screw by movably mounting the ball nut 2 on the ball screw 1. This rolling contact method not only reduces frictional resistance but also greatly improves the smoothness and precision of transmission, providing strong support for precision mechanical operations. The retaining element 11 and transmission balls 12 on the ball screw 1 further enhance the stability and durability of the transmission. The rolling connection between the transmission balls 12 and the ball screw 1 effectively distributes the load, reduces wear, and thus extends the module's service life. Simultaneously, the introduction of the retaining element 11 ensures the orderly arrangement of the transmission balls 12 during operation, avoiding mutual interference between the balls and further improving transmission efficiency. The oil injection assembly 3 provides continuous and effective lubrication for the module. The coordinated use of the oil injection chamber 31, oil injection pipe 32, and oil injection port 33 allows the lubricating oil to be accurately delivered to the retaining element 11 and transmission balls 12, effectively reducing the coefficient of friction, reducing heat generation, and improving transmission efficiency. In particular, the introduction of the oil injection screw 34, through its squeezing action, ensures that the lubricating oil in the oil injection chamber 31 is fully utilized, avoiding waste and drying of the lubricating oil. This embodiment achieves high precision, high efficiency, and high stability in transmission. At the same time, continuous lubrication ensures an effective extension of the module's service life.
[0027] The ball screw 1 is provided with a screw groove 13, and an oil reservoir 131 is provided on the bottom surface of the screw groove 13. The oil reservoir 131 is a U-shaped groove, and the screw groove 13 is used to slide and connect the transmission balls 12. Specifically, the opening of the oil reservoir 131 is provided with an R-angle. In this embodiment, the oil reservoir 131 not only effectively stores an appropriate amount of lubricant, ensuring that the transmission balls 12 can obtain continuous and uniform lubrication under high-speed or heavy-load conditions, reducing friction and wear, and extending the service life of the ball screw 1 and transmission components, but also optimizes the flow path of the lubricating oil by designing the R-angle at the opening of the oil reservoir 131, reducing the accumulation and overflow of lubricating oil at the corners, improving lubrication efficiency, and avoiding contamination and increased resistance caused by lubricating oil accumulation.
[0028] The ball nut 2 includes a mounting platform 21 and a connecting post 22. The mounting platform 21 is located on one side of the connecting post 22, and the retaining element 11 is centrally located at the axis of the ball nut 2, passing through the mounting platform 21 and the connecting post 22 in sequence. Specifically, a mounting platform 221 is provided on one side of the connecting post 22, and the oil injection component 3 is mounted on the mounting platform 221. In this embodiment, the mounting platform 21 is located on one side of the connecting post 22, which not only stabilizes the nut structure but also provides a solid foundation for the subsequent integration of components. The retaining element 11 is precisely centered at the axis of the ball nut 2 and effectively passes through the mounting platform 21 and the connecting post 22, ensuring the smoothness and stability of the ball movement, thereby improving the overall operating accuracy and durability of the module. The carefully designed mounting platform 221 on one side of the connecting post 22 provides ideal space for the installation of the oil injection component 3. This layout makes the oil injection operation more convenient, ensuring that the lubricant is accurately injected into the ball contact area, effectively reducing friction and wear, and extending the service life of the module.
[0029] The oil injection screw 34 is provided with at least one section of extrusion threaded blade 341. When the extrusion screw rotates, it drives the extrusion threaded blade 341 to rotate, thereby squeezing the lubricating oil in the oil injection chamber 31 toward the retaining element 11. Specifically, a connecting bushing 342 is provided at one end of the oil injection screw 34, which is used to fix the oil injection screw 34 in the oil injection chamber 31. In this embodiment, the at least one section of extrusion threaded blade 341 provided on the oil injection screw 34 can efficiently drive the threaded blade to rotate synchronously during the screw rotation. This dynamic process causes the lubricating oil in the oil injection chamber 31 to be subjected to continuous and uniform squeezing action. This not only ensures the precise directional flow of lubricating oil, but also significantly improves lubrication efficiency, so that the retaining element 11 can be fully and uniformly lubricated. Furthermore, by configuring the connecting bushing 342 at one end of the oil injection screw 34, a stable connection between the oil injection screw 34 and the oil injection chamber 31 is achieved. This design not only enhances the stability and reliability of the structure, but also simplifies the installation and maintenance process and reduces the difficulty of operation.
[0030] The oil filling port 33 is provided with an oil filling plug 331, which is a grommet screw. In this embodiment, the grommet screw oil filling plug 331 has a tight sealing performance and is also easy to disassemble and inject new lubricating oil.
[0031] Two sets of oil injection pipes 32 are provided to inject oil into the transmission balls 12 at different positions. In this embodiment, precise grease injection can be performed on the transmission balls 12 at different positions to ensure that each ball receives sufficient lubrication. Since the balls play a crucial transmission role in the screw module, their lubrication status directly affects the operating efficiency and lifespan of the entire module.
[0032] One end of the oil injection screw 34 is connected to a drive element 343, which drives the oil injection screw 34 to rotate, thereby causing the lubricating oil in the oil injection chamber 31 to be squeezed towards the holding element 11. The drive element 343 is a micro motor. In this embodiment, the micro motor, as the drive element 343, precisely controls the rotation of the oil injection screw 34, achieving fine regulation of the lubricating oil in the oil injection chamber 31. As the screw rotates, the lubricating oil is effectively squeezed towards the holding element 11, ensuring uniform distribution and timely supply of the lubricating oil.
[0033] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An automatic oiling ball screw module, characterized in that: The device includes a ball screw, a ball nut, and an oil injection assembly. The ball nut is movably mounted on the ball screw and drives along the length of the ball screw. A retaining element is provided on the ball screw, and a drive ball is provided on the retaining element. The drive ball is in rolling connection with the ball screw. The oil injection assembly includes an oil injection chamber, an oil injection pipe, and an oil injection port provided on the ball nut. The oil injection pipe is used to guide the lubricating oil in the oil injection chamber toward the retaining element. The oil injection port is used to inject lubricating oil. An oil injection screw is provided in the oil injection chamber, and the oil injection screw is used to squeeze the lubricating oil in the oil injection chamber toward the retaining element.
2. The automatic oiling ball screw module according to claim 1, characterized in that: The ball screw is provided with a screw groove, and the bottom surface of the screw groove is provided with an oil storage groove. The oil storage groove is a U-shaped groove, and the screw groove is used to slide and connect the transmission balls.
3. The automatic oiling ball screw module according to claim 2, characterized in that: The oil storage tank has a radius (R) at the opening.
4. The automatic oiling ball screw module according to claim 1, characterized in that: The ball nut includes a mounting platform and a connecting column. The mounting platform is located on one side of the connecting column, and the retaining element is centrally located at the axis of the ball nut and passes through the mounting platform and the connecting column in sequence.
5. The automatic oiling ball screw module according to claim 4, characterized in that: An installation platform is provided on one side of the connecting column, and the oil injection assembly is installed on the installation platform.
6. The automatic oiling ball screw module according to claim 1, characterized in that: The oil injection screw is provided with at least one section of extrusion thread blade. When the extrusion screw rotates, it drives the extrusion thread blade to rotate, thereby driving the lubricating oil in the oil injection chamber to be squeezed toward the holding element.
7. The automatic oiling ball screw module according to claim 6, characterized in that: One end of the oil injection screw is provided with a connecting bushing, which is used to fix the oil injection screw in the oil injection chamber.
8. The automatic oiling ball screw module according to claim 1, characterized in that: The oil filling port is equipped with an oil filling plug, which is a nut screw.
9. The automatic oiling ball screw module according to claim 1, characterized in that: The oil injection pipe is provided in two sets to inject oil into the transmission balls at different positions.
10. The automatic oiling ball screw module according to claim 1, characterized in that: One end of the oil injection screw is connected to a drive element, which is used to drive the oil injection screw to rotate so as to squeeze the lubricating oil in the oil injection chamber toward the holding element. The drive element is a micro motor.