A load-bearing slide for a ring guide rail
By integrating a brush cleaning mechanism and a ball rolling structure into the bearing slide, the problems of high friction and impurity accumulation are solved, achieving automatic cleaning and low-friction sliding effect, and improving the motion accuracy and lifespan of the ring guide rail.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUACHUANGLI AUTOMATION TECH CO LTD
- Filing Date
- 2025-10-27
- Publication Date
- 2026-07-31
AI Technical Summary
The existing bearing slide has high friction when sliding on the ring guide rail, resulting in uneven movement. Furthermore, the accumulation of impurities on the guide rail surface leads to wear and reduced precision of moving parts. Existing cleaning methods are inefficient and cannot be cleaned in real time.
A dust removal mechanism with a brush and a rolling structure with balls cooperating with a semi-circular groove were designed, combined with a screen to filter lubricating oil, to achieve automatic cleaning and reduce friction.
It achieves automatic cleaning during slide movement, ensuring long-term stable and high-precision operation of the device, significantly reducing friction, improving sliding smoothness, and extending service life.
Smart Images
Figure CN224579635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of annular guide rail slide technology, and in particular to a load-bearing slide for annular guide rails. Background Technology
[0002] Circular guide rails and load-bearing slides are core components in automated equipment that enable circular or arc-shaped movements. They are used in automated production lines, assembly workbenches, and various processing equipment that require rotary motion. The load-bearing slides move on the circular guide rails to carry and transport workpieces or functional components.
[0003] In practical applications, in order to ensure that the bearing slide can move smoothly and accurately along the guide rail, it is necessary to reduce the friction between the slide and the guide rail. Traditional sliding friction has high resistance, which will affect the movement speed and positioning accuracy, and has high energy consumption. Some designs adopt the principle of rolling friction, such as setting a rolling element of a rolling rod between the slide and the guide rail, so as to replace sliding with rolling, thereby significantly reducing frictional resistance and improving the smoothness of movement.
[0004] However, even with the adoption of a rolling friction structure, existing load-bearing slides still face severe challenges in industrial environments. Production workshops are generally filled with contaminants such as dust, chips, and oil. These impurities fall and adhere to the surface of the annular guide rail. When the load-bearing slide runs, the rolling elements directly crush these impurity particles, causing damage or wear to the precision surfaces of the rolling elements and guide rail, compromising their accuracy and shortening their service life. Furthermore, the presence of impurities interferes with the continuity of rolling, causing minor vibrations or stagnation in the motion, thereby reducing the stability and positioning accuracy of the entire motion system. Cleaning the guide rails mainly relies on periodic downtime for manual wiping and maintenance. This method is not only inefficient, increasing downtime and maintenance costs, but also cannot clean up contamination generated during operation in real time.
[0005] Therefore, this utility model proposes a load-bearing slide for annular guide rails to overcome the shortcomings of the prior art. Utility Model Content
[0006] In view of the problems of high sliding friction, insufficient smooth movement, and wear and reduced precision of moving parts caused by the accumulation of impurities on the guide rail surface in the existing bearing slide for annular guide rail, this utility model aims to provide a bearing slide for annular guide rail with an improved structure that can effectively solve the above problems.
[0007] This utility model provides a load-bearing slide for a ring guide rail, comprising: a slide rail, a top plate, a sliding mechanism disposed between the top plate and the slide rail, and a dust removal mechanism.
[0008] The sliding mechanism includes semi-circular grooves respectively opened on the opposite surfaces of the top plate and the slide rail, and multiple balls accommodated in the track formed by the semi-circular grooves; the dust removal mechanism includes a limiting strip and a brush.
[0009] Furthermore, the top plate is slidably fitted to the slide rail, the limiting strip is fixed to the outside of the slide rail, the brush is disposed on the top plate, and the brush abuts against the surface of the limiting strip to clean the surface of the limiting strip when the top plate slides along the slide rail.
[0010] Preferably, the top plate has a mounting hole, the brush is fixed to the bottom of the threaded rod, and the threaded rod is threaded into the mounting hole.
[0011] Preferably, a nut is threaded onto the threaded rod, and the nut is used to lock the threaded rod into the mounting hole.
[0012] Preferably, the dust removal mechanism further includes a pulley installed on the top plate, the pulley rolling in contact with the limiting strip to guide the movement of the top plate.
[0013] Preferably, the pulley is rotatably connected to the top plate via bearings and bolts.
[0014] Preferably, the sliding mechanism further includes a plurality of limiting blocks, the limiting blocks being fixed in the semi-circular groove formed on the top plate, and the ball bearings being rotatably disposed between adjacent limiting blocks.
[0015] Preferably, the top plate is further provided with an oil inlet, which is connected to the semi-circular groove that accommodates the ball.
[0016] Preferably, the oil inlet is provided with a screen inside, which is used to filter the lubricating oil injected through the oil inlet.
[0017] This utility model has the following beneficial effects:
[0018] 1. This utility model solves the problem in the prior art where dust and impurities accumulate on the guide rail surface, leading to increased wear of moving parts and decreased motion accuracy. It achieves the technical effect of automatically cleaning the guide rail synchronously when the slide moves, thereby ensuring the long-term stable operation and high precision of the device.
[0019] 2. This utility model, by adopting a rolling structure with balls and semi-circular grooves and setting an oil inlet with a screen, solves the problems of high sliding friction, unsmooth movement, inconvenient lubrication and maintenance, and easy introduction of impurities causing secondary wear in the existing technology. It achieves the technical effect of significantly reducing movement resistance, improving sliding smoothness, making the lubrication process more convenient and cleaner, and effectively extending the service life of the device. Attached Figure Description
[0020] Figure 1 This is a perspective view of a bearing slide for a ring guide rail proposed in this utility model;
[0021] Figure 2 This is a front view of a bearing slide for a ring guide rail proposed in this utility model;
[0022] Figure 3 This is an exploded view of a dust removal mechanism in a bearing slide for a ring guide rail, as proposed in this utility model.
[0023] Figure 4 This is an exploded view of the sliding mechanism in the bearing slide of a ring guide rail proposed in this utility model.
[0024] Legend:
[0025] 1. Slide rail; 2. Top plate; 3. Dust removal mechanism; 31. Limiting strip; 32. Bolt; 33. Bearing; 34. Pulley; 35. Mounting hole; 36. Threaded rod; 37. Brush; 38. Nut; 4. Sliding mechanism; 41. Semicircular groove; 42. Limiting block; 43. Ball bearing; 44. Oil inlet; 45. Screen. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] Example:
[0028] Please refer to Figure 1 and Figure 2A bearing slide for a ring guide rail includes a slide rail 1 and a top plate 2 slidably fitted to the slide rail 1. A sliding mechanism 4 for reducing sliding friction and a dust-cleaning mechanism 3 for cleaning the guide rail are provided between the top plate 2 and the slide rail 1. The dust-cleaning mechanism 3 includes two limiting strips 31, which are fixedly connected to the front and rear sides of the slide rail 1 by fasteners. The dust-cleaning mechanism 3 also includes multiple pulleys 34, which are rotatably connected to the bottom of the top plate 2 by bolts 32 and bearings 33. The multiple pulleys 34 respectively roll in contact with the side of the two limiting strips 31 furthest away. Multiple mounting holes 35 are provided on the top of the top plate 2, and multiple threaded rods 36 are threadedly connected to the interior of the multiple mounting holes 35. The bottom of each threaded rod 36 is fixed... A brush 37 is fixedly connected, and the bristles of the brush 37 elastically abut against the surface of the limiting strip 31. A nut 38 is threadedly connected to the top of the outer wall of each threaded rod 36. The nut 38 is used to fix the threaded rod 36 in the mounting hole 35. The sliding mechanism 4 includes semi-circular grooves 41 respectively opened on the top of the slide rail 1 and the bottom of the top plate 2. The upper and lower semi-circular grooves 41 cooperate to form a ball track. Multiple balls 43 are accommodated inside the ball track and achieve rolling connection. Multiple limiting blocks 42 are fixedly connected inside the semi-circular groove 41 at the bottom of the top plate 2. Multiple balls 43 are rotatably connected between adjacent limiting blocks 42. An oil inlet 44 is also opened on the top plate 2 and communicates with the semi-circular groove 41. A screen 45 for filtering impurities is fixedly installed inside the oil inlet 44.
[0029] Please refer to Figure 3 The structure of the dust removal mechanism 3 is described in detail below. The dust removal mechanism 3 includes limiting strips 31 fixed to both sides of the slide rail 1. The bottom of the top plate 2 is fixedly connected to the bearing 33 by multiple bolts 32. The pulley 34 is rotatably connected to the top plate 2 through the bearing 33, and the outer edge of the pulley 34 rolls against the side of the limiting strip 31. This rolling contact provides precise guidance and limiting for the movement of the top plate 2. The top of the top plate 2 has multiple through mounting holes 35. The bottom of the threaded rod 36 is fixedly connected to the brush 37. The threaded rod 36 is threaded through the mounting hole 35. The top of the threaded rod 36 is threaded with a nut 38. By tightening the nut 38, the axial position of the threaded rod 36 can be adjusted and fixed, so that the bristles of the brush 37 maintain a stable contact pressure with the surface of the limiting strip 31. This structural combination ensures that when the top plate 2 moves along the slide rail 1, the brush 37 can continuously clean the surface of the limiting strip 31, preventing the accumulation of impurities from affecting the rolling of the pulley 34, thereby ensuring the smoothness and accuracy of the movement.
[0030] Please refer to Figure 4To achieve low-friction sliding, semi-circular grooves 41 are respectively opened at the bottom of the top plate 2 and the top of the slide rail 1. The two semi-circular grooves 41 together form an annular ball track, in which multiple balls 43 are accommodated. Multiple limiting blocks 42 are also fixedly connected in the semi-circular grooves 41 of the top plate 2. Multiple balls 43 are rotatably connected between adjacent limiting blocks 42 at intervals. The limiting blocks 42 are used to constrain the orderly movement of the balls 43 in the track and prevent the balls 43 from falling off or piling up. By replacing the traditional sliding with the rolling of the balls 43, the motion friction between the top plate 2 and the slide rail 1 is greatly reduced, making the movement of the bearing slide smoother.
[0031] In a preferred embodiment, to facilitate the installation of the brush 37 and precisely adjust the contact pressure between the brush 37 and the limiting strip 31, the mounting hole 35 on the top plate 2 is a through hole with threads on its inner wall. The body of the threaded rod 36 is threadedly connected to the internal thread of the mounting hole 35. The brush 37 is fixedly connected to the end of the threaded rod 36 away from the top plate 2 by bonding or integral molding. The portion of the threaded rod 36 extending beyond the upper surface of the top plate 2 is threadedly connected to a nut 38. When it is necessary to fix the position of the brush 37, the nut 38 is tightened so that the bottom surface of the nut 38 is flush with the top plate 2. The upper surface is pressed against, thereby achieving reliable locking of the threaded rod 36. In order to make the top plate 2 move more smoothly and reliably along the guide bar 31, the dust removal mechanism 3 also includes multiple pulleys 34. Each pulley 34 is rotatably connected to the bottom of the top plate 2 via a combination of a bearing 33 and a bolt 32. Specifically, after the bolt 32 passes through the top plate 2, it is threaded and fixed to the inner ring of the bearing 33. The pulley 34 is fixedly sleeved on the outer ring of the bearing 33, so that the pulley 34 can rotate around the axis of the bolt 32 with minimal frictional resistance. The outer peripheral surface of the pulley 34 rolls in contact with the side of the limit bar 31.
[0032] In another preferred embodiment, in order to ensure that all the balls 43 roll synchronously and orderly in the track formed by the semi-circular groove 41, a plurality of limit blocks 42 arranged in a ring array are fixedly connected in the semi-circular groove 41 opened in the top plate 2. A receiving groove is formed between two adjacent limit blocks 42, and each ball 43 can be freely rotatably accommodated in a receiving groove. In order to facilitate the lubrication and maintenance of the sliding mechanism 4, one or more oil inlets 44 are opened on the top plate 2. The outlet of the oil inlet 44 is directly connected to the space of the semi-circular groove 41 that accommodates the balls 43. In order to prevent impurities in the lubricating oil from entering the ball track and causing wear, a screen 45 is also fixedly installed inside the oil inlet 44.
[0033] Working principle: Two limiting strips 31 in the dust removal mechanism 3 are installed at the middle of the front and rear sides of the slide rail 1 respectively. The top plate 2 is placed on top of the slide rail 1, so that the top plate 2 and the slide rail 1 are initially aligned. Multiple bolts 32 are inserted through the top of the top plate 2. The bottom of the multiple bolts 32 is threadedly connected to the bearing 33. The pulleys 34 fixed at the bottom of the bearing 33 correspond to the limiting strips 31. The bottom of the multiple pulleys 34 are rotatably connected to the opposite side of the two limiting strips 31 respectively, ensuring that the pulleys 34 can roll smoothly along the limiting strips 31. Multiple mounting holes 35 are made, and multiple threaded rods 36 are threaded into the interior of the multiple mounting holes 35 and pass through the mounting holes 35 respectively. The brush 37 fixed at the bottom of the threaded rod 36 is aligned with the surface of the limiting strip 31. Nuts 38 are threaded to the top of the outer wall of the multiple threaded rods 36. By tightening the nuts 38, the position of the threaded rods 36 in the mounting holes 35 is fixed, so that the brush 37 is stably in a state that can clean the surface of the limiting strip 31, preventing the pulley 34 from wearing faster or the movement accuracy of the top plate 2 from decreasing due to impurities on the surface of the limiting strip 31.
[0034] When the top plate 2 starts to slide, the semi-circular groove 41 between the slide rail 1 and the top plate 2 engages. Multiple limiting blocks 42 fixed inside the top semi-circular groove 41 and multiple balls 43 rotatably connected between them roll inside the bottom semi-circular groove 41. Through the rolling of the balls 43, the sliding friction between the top plate 2 and the slide rail 1 is reduced, making the top plate 2 slide along the slide rail 1 more smoothly. When it is necessary to add lubricating oil to the sliding mechanism 4, the lubricating oil is poured into the oil inlet 44. The screen 45 installed inside the oil inlet 44 will filter the poured lubricating oil to prevent impurities from entering the interior of the semi-circular groove 41 and avoid impurities affecting the rolling of the balls 43 or causing additional wear.
[0035] During the sliding process of the top plate 2, the top plate 2 slides along the limiting strip 31. The brush 37 at the bottom of the threaded rod 36 will contact the surface of the limiting strip 31 and slide relative to it, cleaning the surface of the limiting strip 31, removing any impurities, and maintaining the accuracy of the movement of the top plate 2.
Claims
1. A load-bearing slide for a ring-shaped guide rail, comprising: The slide rail (1) and the top plate (2) are slidably fitted on the slide rail (1); A sliding mechanism (4) is disposed between the top plate (2) and the slide rail (1); And the dust removal mechanism (3); Its features are, The sliding mechanism (4) includes semi-circular grooves (41) respectively opened on the opposite surfaces of the top plate (2) and the slide rail (1), and a plurality of balls (43) accommodated in the track formed by the semi-circular grooves (41). The dust removal mechanism (3) includes a limiting strip (31) fixed to the outside of the slide rail (1) and a brush (37) set on the top plate (2). The brush (37) abuts against the surface of the limiting strip (31) to clean the surface of the limiting strip (31) as the top plate (2) slides along the slide rail (1).
2. A load bearing carriage for a looped rail as claimed in claim 1, wherein, The top plate (2) has an installation hole (35), the brush (37) is fixed to the bottom of the threaded rod (36), and the threaded rod (36) is threaded into the installation hole (35).
3. A bearing slide for an annular guide rail according to claim 2, characterized in that, A nut (38) is threaded onto the threaded rod (36), and the nut (38) is used to lock the threaded rod (36) into the mounting hole (35).
4. The load bearing carriage for an endless rail of claim 1 wherein, The dust removal mechanism (3) also includes a pulley (34) installed on the top plate (2), the pulley (34) rolling in contact with the limiting strip (31) to guide the movement of the top plate (2).
5. A load bearing carriage for a looped rail as claimed in claim 4, wherein, The pulley (34) is rotatably connected to the top plate (2) via a bearing (33) and a bolt (32).
6. The load bearing carriage for an endless rail of claim 1 wherein, The sliding mechanism (4) also includes a plurality of limiting blocks (42), the limiting blocks (42) being fixed in the semi-circular groove (41) opened on the top plate (2), and the ball bearings (43) being rotatably disposed between adjacent limiting blocks (42).
7. The load bearing carriage for an endless rail of claim 1 wherein, The top plate (2) is also provided with an oil inlet (44), which is connected to the semi-circular groove (41) that accommodates the ball (43).
8. A load bearing carriage for a looped rail as claimed in claim 7, wherein, The oil inlet (44) is equipped with a screen (45) inside, which is used to filter the lubricating oil injected through the oil inlet (44).