Linear guide rail with dustproof structure function

Abstract

This utility model relates to the field of guide rail technology, and in particular to a linear guide rail with a dustproof structure. It includes a guide rail, pin holes, and a slider. Multiple pin holes are formed on the inner side of the guide rail's center, and a slider is slidably connected to the outer side of the guide rail. Dustproof devices are fixedly connected to both ends of the slider. The dustproof device includes a mounting block, with a first cavity and a second cavity formed on its inner side. An alloy scraper and a beveled scraper are slidably connected to the inner sides of both the first and second cavities. The sides of the alloy scraper are in close contact with the sides of the beveled scraper. A groove is formed on the side of the mounting block away from the first cavity, and a guide groove is formed on the side of the mounting block near the alloy scraper and the beveled scraper. In this utility model, the dustproof device precisely scrapes away large particles and fine dust from the guide rail surface, ensuring the cleanliness of the guide rail, better fitting the guide rail, and preventing external dust and debris from intruding into the mating surface between the guide rail and the slider, thus ensuring stable equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of guide rail technology, specifically a linear guide rail with a dustproof structure. Background Technology

[0002] A linear guide with a dustproof structure is a mechanical component that adds a dustproof design to the linear guide to reduce the impact of dust and other impurities on the guide, improve the service life and running accuracy of the guide. The dustproof structure is installed at both ends of the slider to prevent dust, debris and other particles from entering the interior from the ends of the slider, thus protecting the rolling elements and the surface of the guide.

[0003] The dustproof structure isolates the slider from the external environment through components such as sealed end caps, sealed bottom plates, and dustproof sheets, forming a physical barrier. With the help of components such as oil scrapers and plastic scrapers, the slider contacts the guide rail surface when it moves, scraping away dust, oil, and other impurities from the guide rail surface.

[0004] In high-speed linear guide operation scenarios, when the equipment operates continuously at high speed, the dustproof sheet reciprocates frequently with the slider, generating continuous friction with the guide surface. Mechanical energy is continuously converted into heat energy, causing the temperature of the contact area to rise rapidly. If a scraper made of plastic is used, due to the limited heat resistance of plastic itself, the molecular structure is easily damaged under the cumulative effect of high temperature, gradually resulting in softening, warping, and other deformation. The deformed scraper cannot fit tightly against the guide, and the dustproof seal fails. External dust and debris take the opportunity to invade the mating surface between the guide and the slider, aggravating wear and affecting the stable operation of the equipment.

[0005] Therefore, a linear guide rail with a dustproof structure is proposed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a linear guide rail with a dustproof structure to solve the problem that if a scraper made of plastic material is used, the limited heat resistance of the plastic itself will cause the molecular structure to be easily damaged under the cumulative effect of high temperature, gradually resulting in softening, warping and other deformation. The deformed scraper cannot fit tightly against the guide rail, the dustproof seal fails, and external dust and debris take the opportunity to invade the mating surface between the guide rail and the slider, aggravating wear and affecting the stable operation of the equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A linear guide rail with a dustproof structure includes a guide rail, pin holes, and a slider. Multiple pin holes are formed on the inner side of the guide rail's center. A slider is slidably connected to the outer side of the guide rail, and dustproof devices are fixedly connected to both ends of the slider. The dustproof device includes a mounting block. A first cavity and a second cavity are formed on the inner side of the mounting block. An alloy scraper and a beveled scraper are slidably connected to the inner sides of both the first and second cavities. The sides of the alloy scraper are in close contact with the sides of the beveled scraper. A groove is formed on the side of the mounting block away from the first cavity, and a flow guide groove is formed on the side of the mounting block near the alloy scraper and the beveled scraper. A collection chamber is slidably connected to the inner side of the groove.

[0009] As a further optimization of this utility model, the chute includes a trough body, a semi-circular groove is provided at the bottom of the inner side of the trough body, and a ball bearing is provided inside the semi-circular groove. The collection chamber includes a chamber body, and a collection port is provided on the side of the chamber body near the guide trough. The side of the collection port is in close contact with the side of the guide trough.

[0010] As a further optimization of this utility model, the two second cavities are symmetrically distributed on the inner side of the mounting block, the first cavity is located above the two second cavities, and the inner sides of both the first and second cavities are filled with two-thirds hydraulic oil.

[0011] As a further optimization of this utility model, multiple alloy scrapers and inclined scrapers are provided, and the alloy scrapers and inclined scrapers are evenly distributed in the first cavity and the second cavity. The alloy scrapers and inclined scrapers are respectively attached to the inner walls of the first cavity and the second cavity, and the ends of the alloy scrapers and inclined scrapers are parallel to and attached to the surface of the guide rail.

[0012] As a further optimization of this utility model, the guide channel is U-shaped, both ends of the guide channel are connected to the inner side of the chute and the collection port, and the side of the guide channel that is close to the alloy scraper and the inclined scraper is set as arc-shaped.

[0013] As a further optimization of this utility model, the following features are provided: the hopper is a cuboid structure, the outer wall of the hopper is tightly fitted to the inner wall of the tank, the collection port is a rectangular opening, the opening height of the collection port is consistent with the opening height of the guide channel, and the length of the collection port covers the opening of the guide channel.

[0014] As a further optimization of this utility model, the semicircular grooves are respectively set at the bottom of the inner side of the groove body and the bottom of the chamber body, the balls are evenly and equidistantly distributed between the two semicircular grooves, and the balls roll in contact with the inner side of the semicircular grooves.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, a dustproof device is installed, with multiple combined scrapers and inclined scrapers working in layers to precisely scrape away large and fine dust particles from the guide rail surface, ensuring the cleanliness of the guide rail and better fitting the guide rail. This prevents external dust and debris from intruding into the mating surface between the guide rail and the slider, ensuring stable operation of the equipment. The inclined U-shaped guide channel, combined with an arc design, uses gravity to accelerate the sliding of dust, sealing the gaps between the scrapers, reducing escape, and improving the guiding efficiency. The collection chamber and the chute fit tightly together, with the rectangular chamber and rectangular opening fully covering the guide channel to prevent dust leakage. The rolling cooperation of the ball bearings and the double semi-circular grooves makes the chamber smooth and effortless to pull out, reducing maintenance difficulty. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the dustproof device of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation position of the first cavity in this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide channel of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the tank body of this utility model;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point A in the middle;

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the hopper body of this utility model.

[0024] In the diagram: 1. Guide rail; 2. Pin hole; 3. Slider;

[0025] 4. Dustproof device; 41. Mounting block; 42. First cavity; 43. Second cavity; 44. Alloy scraper; 45. Angled scraper; 46. Guide channel;

[0026] 47. Slide groove; 471. Groove body; 472. Semicircular groove; 473. Ball bearing;

[0027] 48. Collection bin; 481. Bin body; 482. Collection port. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Please see Figures 1-7 This utility model provides a technical solution:

[0031] A linear guide rail with a dustproof structure includes a guide rail 1, pin holes 2, and a slider 3. Multiple pin holes 2 are provided on the inner side of the center of the guide rail 1, and a slider 3 is slidably connected to the outer side of the guide rail 1. Dustproof devices 4 are fixedly connected to both ends of the slider 3. The dustproof device 4 includes a mounting block 41. A first cavity 42 and a second cavity 43 are provided on the inner side of the mounting block 41. An alloy scraper 44 and an inclined scraper 45 are slidably connected to the inner sides of both the first cavity 42 and the second cavity 43. The two sides of the alloy scraper 44 are in close contact with the two sides of the inclined scraper 45. A groove 47 is provided on the side of the mounting block 41 away from the first cavity 42, and a guide groove 46 is provided on the side of the mounting block 41 close to the alloy scraper 44 and the inclined scraper 45. A collection chamber 48 is slidably connected to the inner side of the groove 47.

[0032] As a further implementation of the above technical solution: the sliding groove 47 includes a groove body 471, a semi-circular groove 472 is opened at the bottom of the inner side of the groove body 471, and a ball bearing 473 is provided inside the semi-circular groove 472. The collection chamber 48 includes a chamber body 481, and a collection port 482 is opened on the side of the chamber body 481 near the guide groove 46. The side of the collection port 482 is in close contact with the side of the guide groove 46. The groove body 471 provides sliding installation space for the collection chamber 48. The semi-circular groove 472 and the ball bearing 473 cooperate to make the collection chamber 48 pull out more smoothly and avoid dust leakage.

[0033] As a further implementation of the above technical solution: the bin 481 is a cuboid structure, the outer wall of the bin 481 is tightly fitted to the inner wall of the tank 471, the collection port 482 is a rectangular opening, the opening height of the collection port 482 is the same as the opening height of the guide channel 46, and the length of the collection port 482 covers the opening of the guide channel 46. The cuboid bin 481 and the tank 471 are tightly fitted, preventing dust from escaping from the gaps, greatly reducing the risk of secondary dust pollution. During the later cleaning, the bin 481 can be pulled out for centralized treatment.

[0034] As a further implementation of the above technical solution: Semicircular grooves 472 are respectively set at the bottom of the inner side of the groove 471 and the bottom of the chamber 481. Ball bearings 473 are evenly distributed between the two semicircular grooves 472. The ball bearings 473 roll in contact with the inner side of the semicircular grooves 472, reducing wear on the chamber 481 and the groove 471, extending the service life of the dustproof device 4, making it easy and effortless to pull out, and making daily cleaning and maintenance more convenient for workers.

[0035] As a further implementation of the above technical solution: two second cavities 43 are symmetrically distributed inside the mounting block 41, and a first cavity 42 is set above the two second cavities 43. The inner sides of the first cavity 42 and the second cavity 43 are filled with two-thirds hydraulic oil. The hydraulic oil plays a dual role of lubrication and buffering, reducing friction loss when the scraper slides, and absorbing scraper vibration, making the dust scraping action more stable.

[0036] As a further implementation of the above technical solution: multiple alloy scrapers 44 and inclined scrapers 45 are provided. The alloy scrapers 44 and inclined scrapers 45 are evenly distributed in the first cavity 42 and the second cavity 43. The alloy scrapers 44 and inclined scrapers 45 are respectively attached to the inner walls of the first cavity 42 and the second cavity 43. The ends of the alloy scrapers 44 and inclined scrapers 45 are parallel to the surface of the guide rail 1. The scraper ends are parallel to the surface of the guide rail 1 to ensure uniform dust scraping pressure, so as not to scratch the guide rail 1 and to thoroughly remove dust, thus ensuring the movement accuracy of the guide rail 1.

[0037] As a further implementation of the above technical solution: the guide channel 46 is U-shaped, and both ends of the guide channel 46 are connected to the inner side of the slide 47 and the collection port 482. The side of the guide channel 46 that is close to the alloy scraper 44 and the inclined scraper 45 is set as arc-shaped. The arc-shaped design fills the gap between the scraper and the channel body 471, reducing the splashing and escape of dust at the moment of scraping. The U-shaped structure wraps the dust, so that it can only flow along the channel body 471 to the collection chamber 48, thereby improving the cleaning efficiency of the dustproof device 4.

[0038] Workflow: First, guide rail 1 is fixedly installed on the equipment base through pin hole 2 on the inner side of the center. Slider 3 is pre-assembled on the outer side of guide rail 1. At this time, alloy scraper 44 and inclined scraper 45 are attached to the surface of guide rail 1. Collection bin 48 is inserted into slide groove 47 and docks with guide groove 46. When the equipment drives slider 3 to move linearly back and forth along guide rail 1, since alloy scraper 44 and inclined scraper 45 are attached to the inner wall of the cavity respectively, and their ends are parallel to the surface of guide rail 1, during the movement, they use their own structure to form a surrounding scraping cleaning of the surface of guide rail 1. The two-thirds hydraulic oil filled in the first cavity 42 and the second cavity 43 plays a lubricating and buffering role when alloy scraper 44 and inclined scraper 45 slide, reducing the friction between the scraper and the inner wall of the cavity. The scraping effect is enhanced by the oil flow, which helps to remove fine impurities scraped off by the scraper. The inclined scraper 45 effectively removes fine impurities and dust from the inclined surface of the guide rail 1 by utilizing the inclined structure. At the same time, it guides the scraped impurities to the direction of the guide groove 46. Under its own gravity and the push of the scraper, the impurities slide along the direction of the guide groove 46. After the impurities slide into the collection port 482 of the collection chamber 48 through the guide groove 46, they are temporarily stored in the chamber body 481. The outer wall of the collection chamber 48 is tightly fitted with the inner wall of the groove body 471 of the slide 47, which can effectively prevent impurity leakage. At the same time, when the impurities accumulate to a certain extent, the collection chamber 48 can be pulled out for centralized cleaning of the internal impurities. After cleaning, it is reinserted into the slide 47 to continue working in conjunction with the dustproof device 4.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A linear guide rail with a dustproof structure, comprising a guide rail (1), a pin hole (2), and a slider (3), characterized in that: The guide rail (1) has multiple pin holes (2) on its inner side, and a slider (3) is slidably connected to the outer side of the guide rail (1). Dustproof devices (4) are fixedly connected to both ends of the slider (3). The dustproof device (4) includes a mounting block (41). The mounting block (41) has a first cavity (42) and a second cavity (43) on its inner side. The first cavity (42) and the second cavity (43) are slidably connected to an alloy scraper (44) and an inclined scraper (45). The alloy scraper (44) is in close contact with the inclined scraper (45) on both sides. The mounting block (41) has a groove (47) on the side away from the first cavity (42). The mounting block (41) has a guide groove (46) on the side close to the alloy scraper (44) and the inclined scraper (45). The groove (47) has a collection chamber (48) slidably connected to its inner side.

2. A linear guide rail with a dustproof structure according to claim 1, characterized in that: The chute (47) includes a trough body (471), a semi-circular groove (472) is provided at the bottom of the inner side of the trough body (471), and a ball bearing (473) is provided inside the semi-circular groove (472). The collection chamber (48) includes a chamber body (481), and a collection port (482) is provided on the side of the chamber body (481) near the guide trough (46). The side of the collection port (482) is in close contact with the side of the guide trough (46).

3. A linear guide rail with a dustproof structure according to claim 1, characterized in that: The two second cavities (43) are symmetrically distributed inside the mounting block (41), and the first cavity (42) is located above the two second cavities (43). The inner sides of the first cavity (42) and the second cavity (43) are both filled with two-thirds hydraulic oil.

4. A linear guide rail with a dustproof structure according to claim 1, characterized in that: Multiple alloy scrapers (44) and inclined scrapers (45) are provided. The alloy scrapers (44) and inclined scrapers (45) are evenly distributed in the first cavity (42) and the second cavity (43). The alloy scrapers (44) and inclined scrapers (45) are respectively attached to the inner walls of the first cavity (42) and the second cavity (43). The ends of the alloy scrapers (44) and inclined scrapers (45) are parallel to the surface of the guide rail (1).

5. A linear guide rail with a dustproof structure according to claim 1, characterized in that: The guide channel (46) is U-shaped, and both ends of the guide channel (46) are connected to the inner side of the slide (47) and the collection port (482). The side of the guide channel (46) that is close to the alloy scraper (44) and the inclined scraper (45) is arc-shaped.

6. A linear guide rail with a dustproof structure according to claim 2, characterized in that: The chamber (481) is a cuboid structure. The outer wall of the chamber (481) is closely fitted to the inner wall of the trough (471). The collection port (482) is a rectangular opening. The opening height of the collection port (482) is consistent with the opening height of the guide channel (46), and the length of the collection port (482) covers the opening of the guide channel (46).

7. A linear guide rail with a dustproof structure according to claim 2, characterized in that: The semicircular grooves (472) are respectively set at the bottom of the inner side of the groove (471) and the bottom of the compartment (481). The balls (473) are evenly and equidistantly distributed between the two semicircular grooves (472). The balls (473) roll in contact with the inner side of the semicircular grooves (472).

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