Self-lubricating linear guide rail ball sliding block
By designing a cross-laid ball return groove, oil inlet and oiling channel system and wear plates in the self-lubricating linear guide ball slider, the problem of lubricating oil having difficulty flowing to the return ball in a static state is solved, realizing a continuous and uniform supply of lubricating oil and preventing lubricating oil loss, thereby improving the operating stability and service life of the slider.
Patent Information
- Application Number
- CN202520623357.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-04-03
AI Technical Summary
In traditional self-lubricating linear guide ball sliders, lubricating oil has difficulty flowing to the return ball groove when the slider is stationary, resulting in lubricating oil leakage or blockage, which affects the slider's continuous and effective lubrication capability.
The design incorporates a cross-shaped ball return groove, a precise oil inlet and oil filling channel system, and four sets of oil outlet holes inside the oil box, supplemented by wear plates, to ensure that the lubricating oil is evenly distributed and prevented from leaking when the oil is stationary.
This ensures a continuous and stable supply of lubricating oil, reduces the risk of oil outlet blockage, and improves the operating efficiency and service life of the slider.
Smart Images
Figure CN223708313U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ball slide, especially relates to a self -lubricating linear guide rail ball slide. BACKGROUND
[0002] The self-lubricating ball slide is characterized by the design of the built-in oil box, which ingeniously realizes the self-supply of lubricating oil. The structure of this self-lubricating linear guide rail ball slide mainly includes a guide rail, a slide block, balls (or steel balls), a retainer, and a precise self-lubricating system. The guide rail and the slide block form the core moving assembly, and the balls roll in their respective grooves to ensure that the slide block can move smoothly along the guide rail. The retainer plays a crucial role in ensuring that the balls are evenly distributed inside the slide block, effectively preventing direct collisions between the balls and maintaining the stable operation of the system.
[0003] The core of the self-lubricating mechanism lies in the ingenious oil outlet design of the oil box, which enables the generation and distribution of lubricating effect during relative motion. Compared to the traditional ball slide, which requires complex oil injection, the traditional method requires the slide block to move at a certain linear speed to ensure that the balls can carry lubricating oil and distribute it evenly to all corners of the slide block. Specifically, after the lubricating oil is injected into the oil box, it needs to penetrate into the slide block through the oil outlet hole. However, if the balls are in a stationary state, the lubricating oil will not flow smoothly in the direction of the ball return groove, which may cause the lubricating oil to leak due to increased internal pressure, undoubtedly increasing the difficulty of oil injection.
[0004] In addition, over a long period of use, there is a risk of blockage of the oil outlet hole, and the traditional design often lacks a backup plan for the oil outlet hole, which further limits its continuous and effective lubrication ability.
[0005] Therefore, it is necessary to invent a self-lubricating linear guide rail ball slide. UTILITY MODEL CONTENTS
[0006] To solve the above technical problems, the utility model provides a self-lubricating linear guide rail ball slide, which comprises a slide block body, a bolt, an end cover assembly, a self-oil tank end cover assembly, a ball return groove, a ball, an oil filling channel, and an oil inlet hole. The two ends of the slide block body are fixedly installed with the end cover assembly and the self-oil tank end cover assembly through the bolt. The ball grooves formed inside the slide block body and the self-oil tank end cover assembly form four cross-shaped ball return grooves. Each ball return groove is equipped with a plurality of balls. The ball return grooves are connected to the oil filling channel through the oil inlet hole. The oil filling channel is arranged inside the slide block body and the self-oil tank end cover assembly on both sides, i.e., between the upper and lower ball return grooves.
[0007] Preferably, the self-oil tank end cover assembly comprises a slider end cover, a self-oil tank, an oil scraping piece, a pressing plate and an oil nozzle, the self-oil tank is assembled outside the slider end cover, the oil scraping piece is assembled outside the self-oil tank, the pressing plate is assembled on the outer surface of the oil scraping piece, the oil nozzle passes through the pressing plate and the oil scraping piece in sequence and communicates with the oil cavity inside the self-oil tank, and the bolt passes through the slider end cover, the self-oil tank, the oil scraping piece and the pressing plate in sequence and is connected with the slider body and fixedly installed on the slider body.
[0008] Preferably, the slider end cover of the self-oil tank end cover assembly and the end cover assembly is provided with a ball groove for constructing the ball return groove, the end cover assembly is composed of the slider end cover, the oil scraping piece and the pressing plate, the bolt passes through the slider end cover, the oil scraping piece and the pressing plate of the end cover assembly in sequence and is connected with the slider body and fixedly installed on the slider body.
[0009] Preferably, the inner side of the self-oil tank is provided with four groups of oil outlet holes, each group of oil outlet holes corresponds to a single ball return groove, and the lubricating oil in the ball cavity inside the self-oil tank enters the inside of the slider body through the oil outlet holes.
[0010] Preferably, wear plates are arranged between the oil outlet holes, the wear plates are used for sealing the oil outlet gaps arranged on the self-oil tank, the wear plates are in close contact with the guide rail surface, and when the wear plates are worn by more than three millimeters, the wear plates cannot seal the oil outlet gaps arranged on the self-oil tank.
[0011] Preferably, oil filling channels are arranged on both sides of the slider end cover of the self-oil tank end cover assembly, the oil filling channels arranged on the slider end cover are not only connected and communicated with the oil filling channels of the slider body, but also connected and communicated with the oil cavity arranged inside the self-oil tank, and each oil filling channel of the slider body is connected and communicated with the upper and lower ball return grooves arranged in correspondence through the oil inlet holes.
[0012] Compared with the prior art, the self-oil tank end cover assembly has the following beneficial effects:
[0013] The self-oil tank end cover assembly significantly improves the performance and practicability of the self-lubricating linear guide rail ball slider.
[0014] The four groups of oil outlet holes are carefully arranged on the inner side of the self-oil box, each group of oil outlet holes is accurately corresponding to a single ball return groove, this design not only greatly improves the distribution efficiency of lubricating oil, but also effectively reduces the risk of oil outlet hole blockage. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is the structure schematic diagram of the self-oil tank end cover assembly of the utility model after explosion.
[0016] Figure 2 is the local section structure schematic diagram of the utility model.
[0017] Figure 3 is the A place local enlarged structure schematic diagram of the utility model Figure 1 .
[0018] Figure 4 is the B local enlarged structure schematic diagram of the utility model Figure 2 .
[0019] In the drawing:
[0020] The slider main body 1, the bolt 2, the end cover assembly 3, the self-oil tank end cover assembly 4, the slider end cover 41, the self-oil box 42, the oil scraping piece 43, the pressing plate 44, the oil nozzle 45, the oil outlet hole 46, the wear piece 47, the ball return groove 5, the ball 6, the oiling channel 7, the oil inlet hole 8. DETAILED DESCRIPTION
[0021] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the scope of the utility model protection.
[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood 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 "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0023] As shown in the accompanying Figure 1 to the accompanying Figure 4 illustrated:
[0024] The utility model provides a kind of self-lubricating linear guide rail ball slide, including slider main body 1, bolt 2, end cover assembly 3, self-oil tank end cover assembly 4, ball return groove 5, ball 6, oiling passage 7 and oil inlet 8, the both ends of slider main body 1 are fixedly installed with end cover assembly 3 and self-oil tank end cover assembly 4 respectively by bolt 2;Ball groove formed in slider main body 1 and self-oil tank end cover assembly 4 inside is set up four cross settings ball return groove 5, each ball return groove 5 is equipped with numerous ball 6, ball return groove 5 is connected with oiling passage 7 by oil inlet 8, and oiling passage 7 is arranged in the inside two sides of slider main body 1 and self-oil tank end cover assembly 4, i.e. between the upper and lower ball return groove 5.
[0025] Further, self-oil tank end cover assembly 4 includes slider end cover 41, self-oil box 42, oil scraping piece 43, pressing plate 44 and oil nozzle 45, these components are equipped by precision, and self-supply and effective management of lubricating oil are realized, the outside of slider end cover 41 is equipped with self-oil box 42, for storing lubricating oil. The outside of self-oil box 42 is equipped with oil scraping piece 43, and its role is to prevent lubricating oil from leaking during the movement of slider. The outside surface of oil scraping piece 43 is further equipped with pressing plate 44, to further enhance the sealing effect of lubricating oil. Oil nozzle 45 is sequentially threaded through pressing plate 44 and oil scraping piece 43, and is connected with the oil cavity in self-oil box 42, to facilitate the user to inject lubricating oil into the oil box. The whole self-oil tank end cover assembly 4 is connected with slider main body 1 by bolt 2, to realize stable fixed installation.
[0026] Further, the slider end cover 41 of the oil tank end cover assembly 4 and the end cover assembly 3 is provided with a ball groove for constructing the ball return groove 5. These ball grooves cooperate with the ball 6 to realize the smooth linear motion of the slider along the guide rail. The end cover assembly 3 is also composed of the slider end cover 41, the oil scraping piece 43 and the pressing plate 44, and is connected with the slider body 1 through the bolt 2 to realize stable and fixed installation. This design not only ensures the accurate construction of the ball return groove 5, but also effectively prevents the leakage of lubricating oil through the cooperation of the oil scraping piece 43 and the pressing plate 44.
[0027] Further, four groups of oil outlet holes 46 are carefully arranged inside the oil box 42, and each group of oil outlet holes 46 corresponds to a single ball return groove 5. This design ensures that the lubricating oil in the ball cavity inside the oil box 42 can accurately pass through the oil outlet hole 46 into the inside of the slider body 1 and be evenly distributed between the balls 6. This accurate distribution of lubricating oil not only improves the running efficiency of the slider, but also significantly prolongs its service life.
[0028] Further, the wear plate 47 is ingeniously arranged between the oil outlet holes 46, which is used to seal the oil outlet gap provided in the oil box 42. The wear plate 47 is in close contact with the surface of the guide rail, and during the movement of the slider, the wear plate 47 will gradually wear out. When the wear reaches a certain degree (up to three millimeters), the wear plate 47 will no longer be able to block the oil outlet gap, at which time the lubricating oil will be continuously and stably supplied to the inside of the slider body 1. This design not only ensures the continuous supply of lubricating oil, but also indirectly reflects the use of the slider through the wear degree of the wear plate 47. When the wear plate 47 is worn to a certain degree, it will automatically unblock the oil outlet gap, ensuring the continuous supply of lubricating oil, and forcibly providing a follow-up solution for the clogging of the oil outlet hole 46.
[0029] Further, the oil tank end cover assembly 4 is provided with two oil filling channels 7 on both sides of the slider end cover 41. These oil filling channels 7 not only connect and communicate with the oil filling channel 7 of the slider body 1, but also connect and communicate with the oil cavity provided inside the oil box 42. When the user injects lubricating oil into the oil box 42 through the oil nozzle 45, the lubricating oil can quickly penetrate into the inside of the slider body 1 through the oil filling channel 7, and then communicate with the upper and lower two corresponding ball return grooves 5 through the oil inlet hole 8. This design makes the oil filling process more convenient and efficient, and also ensures the accurate supply and uniform distribution of lubricating oil.
[0030] The working principle is as follows: first, the self-lubricating linear guide rail ball slider of the utility model is stably connected with the slider body 1, the end cover assembly 3 and the oil tank end cover assembly 4 through the bolt 2 to form a complete movement unit. In this unit, the four cross-arranged ball return grooves 5 are constructed by the ball grooves inside the slider body 1 and the oil tank end cover assembly 4 to provide a stable rolling track for the ball 6.
[0031] Secondly, when the slider moves along the guide rail, the ball 6 rolls in the ball return groove 5, ensuring the smooth linear motion of the slider. At the same time, the lubricating oil stored in the oil tank 42 is precisely introduced into the slider body 1 through the four groups of oil outlet holes 46, and is evenly distributed between the balls 6, providing necessary lubrication between the balls 6 and the guide rail, reducing friction and wear, and improving the running efficiency and service life of the slider.
[0032] Further, in order to prevent the lubricating oil from leaking during the movement of the slider, the oil scraping piece 43 and the pressing plate 44 are arranged in the oil tank end cover assembly 4. The oil scraping piece 43 moves closely to the surface of the guide rail, which can scrape off the excess lubricating oil, and the pressing plate 44 further enhances the sealing effect of the lubricating oil, ensuring the effective management of the lubricating oil.
[0033] In addition, the wear piece 47 arranged between the oil outlet holes 46 also plays an important role. The wear piece 47 is in close contact with the surface of the guide rail and will gradually wear during the movement of the slider. When the wear reaches a certain degree (up to three millimeters), the wear piece 47 will no longer block the oil outlet gap, at which time the lubricating oil will be continuously and stably supplied to the inside of the slider body 1. This design not only ensures the continuous supply of lubricating oil, but also indirectly reflects the use condition of the slider through the wear degree of the wear piece 47, providing a subsequent solution for the possible blockage of the oil outlet hole 46.
[0034] Finally, the user can inject lubricating oil into the oil tank 42 through the oil nozzle 45. The lubricating oil quickly penetrates into the slider body 1 through the oil filling channel 7, and is connected with the upper and lower two corresponding ball return grooves 5 through the oil inlet hole 8. This design makes the oil filling process more convenient and efficient, and also ensures the precise supply and uniform distribution of the lubricating oil, providing a strong guarantee for the continuous and stable operation of the slider.
[0035] The technical scheme of the utility model, or the technical personnel in the utility model technical scheme inspired by the technical scheme of the utility model, designs similar technical scheme, and achieves the above technical effect, which falls within the protection scope of the utility model.
Claims
1. A self-lubricating linear guide ball slider, characterized in that, The system includes a slider body (1), bolts (2), end cap assembly (3), oil tank end cap assembly (4), ball return groove (5), ball bearings (6), oil filling channel (7), and oil inlet (8). The two ends of the slider body (1) are fixedly installed with the end cap assembly (3) and the oil tank end cap assembly (4) respectively by bolts (2). The ball grooves inside the slider body (1) and the oil tank end cap assembly (4) form four intersecting ball return grooves (5). Each ball return groove (5) is equipped with a number of ball bearings (6). The ball return groove (5) is connected to the oil filling channel (7) through the oil inlet (8). The oil filling channel (7) is located on both sides inside the slider body (1) and the oil tank end cap assembly (4), that is, between the upper and lower ball return grooves (5).
2. The self-lubricating linear guide ball slider as described in claim 1, characterized in that: The self-oil tank end cap assembly (4) includes a slider end cap (41), a self-oil box (42), an oil scraper (43), a pressure plate (44), and an oil nozzle (45). The self-oil box (42) is mounted on the outside of the slider end cap (41), the oil scraper (43) is mounted on the outside of the self-oil box (42), and the pressure plate (44) is mounted on the outer surface of the oil scraper (43). The oil nozzle (45) passes through the pressure plate (44) and the oil scraper (43) in sequence and communicates with the oil cavity inside the self-oil box (42). The bolt (2) passes through the slider end cap (41), the self-oil box (42), the oil scraper (43), and the pressure plate (44) in sequence and is connected to the slider body (1), and is fixedly installed on the slider body (1).
3. The self-lubricating linear guide ball slider as described in claim 2, characterized in that: The slider end cap (41) of the oil tank end cap assembly (4) and the end cap assembly (3) is provided with a ball groove for constructing the return ball groove (5). The end cap assembly (3) is composed of a slider end cap (41), an oil scraper (43) and a pressure plate (44). The bolt (2) passes through the slider end cap (41), the oil scraper (43) and the pressure plate (44) of the end cap assembly (3) in sequence and is connected to the slider body (1), and is fixedly installed on the slider body (1).
4. The self-lubricating linear guide ball slider as described in claim 3, characterized in that: The oil box (42) has four sets of oil outlet holes (46) inside. Each set of oil outlet holes (46) corresponds to a single ball return groove (5). The lubricating oil in the ball cavity inside the oil box (42) enters the interior of the slider body (1) through the oil outlet holes (46).
5. A self-lubricating linear guide ball slider as described in claim 4, characterized in that: A wear plate (47) is provided between the oil outlet holes (46). The wear plate (47) is used to seal the oil outlet gap provided by the self-oil box (42). The wear plate (47) is in close contact with the guide rail surface. After the wear plate (47) is worn down to a maximum of three millimeters, the wear plate (47) will no longer be able to seal the oil outlet gap provided by the self-oil box (42).
6. The self-lubricating linear guide ball slider as described in claim 5, characterized in that: The slider end cap (41) of the self-oil tank end cap assembly (4) has a refueling channel (7) through both sides inside. The refueling channel (7) of the slider end cap (41) is not only connected to the refueling channel (7) of the slider body (1), but also connected to the oil cavity inside the self-oil box (42). Each of the refueling channels (7) of the slider body (1) is connected to the upper and lower corresponding return ball grooves (5) through the oil inlet hole (8).