Linear guide rail ball sliding block capable of accurately adding oil
By designing a precise lubrication box connected to the oil inlet and return groove on the linear guide ball slider, the problem of uneven lubrication distribution is solved, achieving precise addition and uniform distribution of lubrication, improving the slider's operating efficiency and system reliability, and reducing environmental pollution and manual labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
The existing lubrication methods for linear guide ball sliders are difficult to control precisely, resulting in uneven lubrication distribution, which affects slider performance and lifespan. In addition, traditional lubrication methods increase manual labor intensity and environmental pollution.
A structure including a slider body, end cap, oil box, oil scraping and dust prevention component, bolts, oil injection head, return ball groove, oil inlet hole, precision oil filling box and ball bearings is designed. Through the connection of the precision oil filling box with the oil inlet hole and return ball groove, the precise addition and uniform distribution of lubricating oil can be achieved.
It achieves precise control of lubricating oil quantity, reduces lubricating oil waste and environmental pollution, improves the operating efficiency and stability of the slider, reduces manual labor intensity, and enhances the reliability and environmental friendliness of the system.
Smart Images

Figure CN224120544U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ball slider technology, and in particular relates to a linear guide ball slider with precise oil addition. Background Technology
[0002] In current linear guide ball-bearing slider designs, lubrication is primarily replenished manually, such as by direct dripping or using specialized lubrication tools. However, these methods have significant limitations. Specifically, precise control of the lubrication level is a major challenge. Overfilling not only wastes lubricating oil and pollutes the environment but may also place unnecessary strain on the system; conversely, insufficient lubrication directly affects the slider's lubrication efficiency and operational stability. More worryingly, traditional lubrication methods often result in uneven lubrication distribution within the slider, causing performance degradation in critical areas due to insufficient lubrication. Over time, this severely weakens the performance and lifespan of the entire linear guide system. To improve this situation, operators must frequently move the slider back and forth, relying on the rolling of the balls to achieve a more even distribution of lubricating oil.
[0003] Therefore, it is essential to invent a linear guide ball slider with precise oil addition. Summary of the Invention
[0004] To solve the above-mentioned technical problems, this utility model provides a linear guide ball bearing slider with precise oil addition, including a slider body, end caps, an oil box, an oil scraper and dustproof component, bolts, an oil injection head, a ball return groove, an oil inlet, a precision oil filling outer box, and balls. The slider body is equipped with end caps at both ends, with an oil box mounted on the outside of one end cap. An oil scraper and dustproof component are mounted on the outside of the oil box and the other end cap. Bolts pass sequentially through the oil scraper and dustproof component, the oil box, and the end caps, connecting them to the slider body and fixing them in place. The oil injection head passes through one of the oil scraper and dustproof components and connects to the oil filling channel inside the oil box. The slider body and end caps have ball return grooves inside. The slider body has four sets of oil inlets, each set communicating with a corresponding ball return groove. Each ball return groove contains a ball. Two precision oil filling outer boxes are installed outside the slider body. Each precision oil filling outer box communicates with the ball return groove through an oil inlet and with the oil filling channel of the oil box.
[0005] Preferably, the outer surface of the slider body is provided with a positioning groove required for positioning and installing the precise oil filling box, and the positioning groove is located between the two sets of oil inlet holes.
[0006] Preferably, the precision refueling outer box includes an outer oil box, a positioning block, a fixing member, and an oil outlet. The positioning block is provided at the center of the inner surface of the outer oil box, and the positioning block corresponds to the positioning groove provided on the outer surface of the slider body. The outer oil box is fixedly installed on the outside of the slider body by the fixing member. The outer oil box is provided with a plurality of oil outlets, each of which enters a corresponding oil inlet hole and communicates with the return ball groove.
[0007] Preferably, the precision refueling outer box further includes an external oil channel and an oil inlet port. The outer oil box has two mirror-symmetrical external oil channels inside. The inlet of the outer oil box is the oil inlet port, which extends into the oil box and is connected to the oil filling channel inside the oil box.
[0008] Preferably, the oil outlet provided on the inner surface of the outer oil channel is connected to the outer oil channel itself. The lubricating oil inside the oil box enters the outer oil channel through the oil inlet port and is then discharged through the oil outlet.
[0009] Preferably, the external oil channel extends into the oil inlet hole but does not penetrate into the return ball groove. The external oil channel does not interfere with the normal circulation of the balls in the return ball groove. When the center point of the balls is on the same horizontal line as the axis of the oil inlet hole, it is permissible to block and seal the oil inlet hole.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] This invention achieves precise control of the lubricating oil quantity, effectively avoiding the problems of excessive or insufficient lubrication, thereby significantly reducing lubricating oil waste and environmental pollution, while ensuring that the slider always receives sufficient lubrication, improving its operating efficiency and stability. Secondly, this design optimizes the distribution of lubricating oil, making it more uniform and reasonable within the slider, avoiding performance degradation and shortened lifespan caused by uneven lubrication, and significantly enhancing the overall performance and reliability of the linear guide system. Furthermore, compared to traditional lubrication methods, this invention significantly reduces the need for operators to frequently move the slider, reducing manual labor intensity and significantly improving work efficiency. Finally, by precisely controlling the amount of lubricating oil used, this invention not only reduces maintenance costs but also enhances environmental friendliness, meeting the requirements of modern industry for green and sustainable development. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a partial cross-sectional structural diagram of the present invention.
[0014] Figure 3 This is a partial cross-sectional structural diagram of the precision refueling outer box of this utility model.
[0015] In the picture:
[0016] 1. Slider body; 2. End cap; 3. Oil box; 4. Oil scraper and dustproof component; 5. Bolt; 6. Oil injection head; 7. Ball return groove; 8. Oil inlet hole; 9. Precision oil filling outer box; 91. Outer oil box; 92. Positioning block; 93. Fixing component; 94. Oil outlet head; 95. Outer oil channel; 96. Oil inlet port; 10. Ball bearing; 11. Positioning groove. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0018] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.
[0019] As attached Figure 1 To be continued Figure 3 As shown:
[0020] This utility model provides a linear guide ball slider with precise oil addition, comprising a slider body 1, end caps 2, an oil box 3, an oil scraper and dustproof assembly 4, bolts 5, an oil injection head 6, a ball return groove 7, an oil inlet 8, a precision oiling outer box 9, and balls 10. The end caps 2 are respectively mounted on both ends of the slider body 1. An oil box 3 is mounted on the outside of one end cap 2, and an oil scraper and dustproof assembly 4 is mounted on the outside of both the oil box 3 and the other end cap 2. Bolts 5 pass sequentially through the oil scraper and dustproof assembly 4, the oil box 3, and the end cap 2, connecting to the slider body 1. The oil filler head 6 passes through one of the oil scraper dustproof components 4 and is connected to the oil filling channel inside the oil box 3; the slider body 1 and the end cap 2 are provided with ball return grooves 7 inside, the slider body 1 is provided with four sets of oil inlet holes 8, each set of oil inlet holes 8 is connected to the corresponding ball return groove 7, and each ball return groove 7 is equipped with a ball bearing 10; the precision oil filling outer box 9 is installed on the outside of the slider body 1, there are two precision oil filling outer boxes 9, the precision oil filling outer boxes 9 are connected to the ball return grooves 7 through the oil inlet holes 8, and are connected to the oil filling channel of the oil box 3.
[0021] Furthermore, a positioning groove 11 is specially provided on the outer surface of the slider body 1. The main purpose of this design is to accurately install the precision lubrication box 9. The positioning groove 11 is cleverly located between the two sets of oil inlet holes 8. This layout not only ensures that the precision lubrication box 9 can be firmly installed on the slider body 1, but also ensures that the connection between the oil inlet hole 8 and the precision lubrication box 9 is unobstructed, providing a solid foundation for the precise addition of lubricating oil.
[0022] Furthermore, the precision lubrication outer box 9 includes an outer oil box 91, a positioning block 92, a fixing member 93, and an oil outlet 94. The outer oil box 91 serves as the main structure, with the positioning block 92 positioned at the center of its inner surface. This positioning block 92 closely corresponds to the positioning groove 11 on the outer surface of the slider body 1, ensuring that the precision lubrication outer box 9 can be accurately installed on the slider body 1. Through the reinforcement of the fixing member 93, the precision lubrication outer box 9 is firmly fixed to the outside of the slider body 1. In addition, the outer oil box 91 is equipped with several oil outlets 94, which precisely enter the corresponding oil inlet holes 8 and connect to the return ball groove 7, providing a smooth channel for the delivery of lubricating oil.
[0023] Furthermore, two mirror-symmetrical external oil channels 95 are specially designed inside the precision oil filling outer box 9. The design of these two external oil channels 95 allows for smooth flow of lubricating oil and corresponds to the upper and lower return ball grooves 7. The inlet of the outer oil box 91 is the oil inlet port 96, which cleverly penetrates into the oil box 3 and is tightly connected to the oil filling channel inside the oil box 3, ensuring precise lubrication. When the lubricating oil enters the external oil channel 95 through the oil inlet port 96, it flows along the channel and is finally discharged through the oil outlet 94, providing sufficient lubrication for the slider body 1.
[0024] Furthermore, the design of the external oil channel 95 is ingenious. Although it extends into the oil inlet hole 8, it does not penetrate deep into the return ball groove 7. This design ensures smooth oil delivery while avoiding interference with the normal circulation of the balls 10 within the return ball groove 7. When the center point of the balls 10 is on the same horizontal line as the axis of the oil inlet hole 8, even if the balls 10 temporarily block the oil inlet hole 8, it will not affect the delivery of lubricating oil or the normal movement of the balls 10. This design improves the operating efficiency of the slider and ensures the stability and reliability of the entire system.
[0025] The working principle is as follows: First, when the slider needs to be lubricated, the operator injects lubricating oil into the oil filling channel inside the oil box 3 through the oil filling head 6 on the oil box 3. After the lubricating oil accumulates inside the oil box 3, it enters the external oil channel 95 inside the precision oil filling box 9 through the oil inlet port 96. Since the external oil channel 95 is designed with two mirror-symmetrical structures and corresponds to the upper and lower ball return grooves 7, the lubricating oil can flow smoothly in these two channels.
[0026] Next, the lubricating oil flows along the outer oil channel 95 until it reaches the oil outlet 94 provided on the inner surface of the outer oil channel 95. These oil outlets 94 correspond precisely to the oil inlet holes 8 on the slider body 1 and are connected to the ball return groove 7. Therefore, when the lubricating oil passes through the oil outlet 94, it directly enters the oil inlet hole 8 and provides lubrication to the balls 10 along the path of the ball return groove 7.
[0027] It is worth noting that the design of the external oil channel 95 is ingenious. Although it extends into the oil inlet hole 8, it does not penetrate deep into the return ball groove 7. This design ensures that the lubricating oil can be smoothly delivered to the location of the balls 10, while avoiding interference with the normal circulation of the balls 10 in the return ball groove 7. Even if the center point of the balls 10 is on the same horizontal line as the axis of the oil inlet hole 8, and the oil inlet hole 8 is temporarily blocked, it will not affect the delivery of lubricating oil or the normal movement of the balls 10.
[0028] Furthermore, the installation of the precision lubrication outer box 9 has also been carefully designed. The precise alignment of the positioning groove 11 on the outer surface of the slider body 1 with the positioning block 92 on the inner surface of the precision lubrication outer box 9 ensures that the precision lubrication outer box 9 can be accurately installed on the slider body 1. With the reinforcement of the fastener 93, the precision lubrication outer box 9 is firmly fixed to the outside of the slider body 1. This design not only improves the ease of installation but also ensures precise addition and stable delivery of lubricating oil.
[0029] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. A linear guide ball slider with precise oil addition capability, characterized in that, The system includes a slider body (1), end caps (2), an oil box (3), an oil scraper and dustproof assembly (4), bolts (5), an oil injection head (6), a ball return groove (7), an oil inlet (8), a precision oil filling box (9), and ball bearings (10). The slider body (1) is fitted with end caps (2) at both ends. One end cap (2) is fitted with an oil box (3), and the other end cap (2) is fitted with an oil scraper and dustproof assembly (4). Bolts (5) pass sequentially through the oil scraper and dustproof assembly (4), the oil box (3), and the end cap (2) to connect to the slider body (1), thus fixing all three components in place. The oil injection head (6) 6) The oil is connected to the oil filling channel inside the oil box (3) through one of the oil scraping and dust prevention components (4); the slider body (1) and the end cap (2) are provided with a ball return groove (7), the slider body (1) is provided with four sets of oil inlet holes (8), each set of oil inlet holes (8) is connected to the corresponding ball return groove (7), and each ball return groove (7) is equipped with a ball (10); the precision oil filling box (9) is installed outside the slider body (1), there are two precision oil filling boxes (9), the precision oil filling box (9) is connected to the ball return groove (7) through the oil inlet hole (8), and is connected to the oil filling channel of the oil box (3).
2. The linear guide ball slider with precise oil addition as described in claim 1, characterized in that: The outer surface of the slider body (1) is provided with a positioning groove (11) required for positioning and installing the precision oiling box (9), and the positioning groove (11) is located between the two sets of oil inlet holes (8).
3. The linear guide ball slider with precise oil addition as described in claim 2, characterized in that: The precision refueling outer box (9) includes an outer oil box (91), a positioning block (92), a fixing member (93), and an oil outlet (94). The positioning block (92) is provided at the center of the inner surface of the outer oil box (91), and the positioning block (92) corresponds to the positioning groove (11) provided on the outer surface of the slider body (1). The outer oil box (91) is fixedly installed on the outside of the slider body (1) by the fixing member (93). The outer oil box (91) is provided with a number of oil outlets (94). Each oil outlet (94) enters the corresponding oil inlet hole (8) and communicates with the return ball groove (7).
4. The linear guide ball slider with precise oil addition as described in claim 3, characterized in that: The precision refueling outer box (9) also includes an outer oil channel (95) and an oil inlet port (96). The outer oil box (91) has two mirror-symmetrical outer oil channels (95) inside. The inlet of the outer oil box (91) is the oil inlet port (96). The oil inlet port (96) passes into the oil box (3) and is connected to the oil filling channel inside the oil box (3).
5. A linear guide ball slider with precise oil addition as described in claim 4, characterized in that: The oil outlet (94) provided on the inner surface of the outer oil channel (95) is connected to the outer oil channel (95) itself. The lubricating oil inside the oil box (3) enters the outer oil channel (95) through the oil inlet port (96) and is then discharged through the oil outlet (94).
6. A linear guide ball slider with precise oil addition as described in claim 5, characterized in that: The external oil channel (95) extends into the oil inlet hole (8) but does not penetrate into the return ball groove (7). The external oil channel (95) does not interfere with the normal circulation of the ball (10) in the return ball groove (7). When the center point of the ball (10) is on the same horizontal line as the axis of the oil inlet hole (8), it is allowed to block and seal the oil inlet hole (8).