Linear bearing with dustproof function

Abstract

The utility model relates to the technical field of linear bearings, and discloses a linear bearing with a dustproof function, which comprises a bearing body, the surface of the bearing body is fixedly connected with a mounting frame through a detachable bolt, and the surface of the mounting frame is provided with a dustproof mechanism. And a promoting mechanism is arranged on the surface of the mounting frame. According to the linear bearing with the dustproof function, a rubber ring is fixedly mounted on the surface of a mounting frame, the mounting frame is connected to the surface of a bearing body through bolts, when the bearing body moves, the rubber ring cleans dust on the surface, along a fixed shaft, of the bearing body, and furthermore, in the moving process of the bearing body, a friction cylinder moves along the fixed shaft, so that the dust is prevented from falling off. And then a rotating rod is driven to rotate, and the semicircular arc-shaped rotation at the end part of the rotating rod extrudes the rubber ring, so that the surface of the rubber ring deforms, dust attached to the surface of the rubber ring is convenient to fall off, and the surface of the fixed shaft is convenient to clean by the rubber ring subsequently.

Description

Technical Field

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

[0002] Linear bearings are a type of low-cost linear motion system used in conjunction with cylindrical shafts for unlimited stroke applications. They are widely used in sliding components of industrial machinery such as precision machine tools, textile machinery, food packaging machinery, and printing machinery.

[0003] According to a dustproof linear bearing (publication number: CN219529584U) disclosed in the above application, the bearing housing can be sealed by making a sealing ring in close contact with the fixed shaft, thereby preventing dust from entering the interior of the bearing housing and ensuring the working condition of the bearing housing and its internal balls. At the same time, when the bearing housing moves, the sealing ring can scrape off the dust on the surface of the fixed shaft.

[0004] However, in actual use, the linear bearings currently in use inevitably accumulate dust on their surface because the fixed shaft needs to be installed externally. When the linear bearing moves, this dust can easily enter the interior of the linear bearing, affecting its use. In view of this, we propose a linear bearing with dustproof function. Utility Model Content

[0005] The purpose of this invention is to provide a linear bearing with dustproof function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linear bearing with dustproof function, comprising a bearing body, a mounting bracket detachably bolted to the surface of the bearing body, a dustproof mechanism provided on the surface of the mounting bracket, and a promoting mechanism provided on the surface of the mounting bracket, the dustproof mechanism comprising:

[0007] A rubber ring is fixedly installed on the arc surface of the mounting frame, and the arc surface of the mounting frame has a movable groove and a movable hole.

[0008] A rotating rod is movably connected to the inner wall of the movable hole. A friction cylinder is fixedly installed on the surface of the rotating rod, and an extrusion groove is formed on the arc surface of the rubber ring.

[0009] Preferably, the promoting mechanism includes a mounting hole, which is opened inside the rubber ring. An airbag is fixedly installed on the inner wall of the mounting hole, and a limit ring is provided on the surface of the rubber ring.

[0010] Preferably, the limiting ring is wavy and is located at the end of the rubber ring.

[0011] Preferably, the shape of the mounting hole is adapted to the shape of the airbag, so that the airbag can be installed inside the mounting hole, thereby allowing the end of the rubber ring to better contact the surface of the fixed shaft.

[0012] Preferably, the shape of the movable hole is adapted to the shape of the rotating rod, and the end of the rotating rod is semi-circular. As the rotating rod rotates, the semi-circular end continuously contacts the rubber ring and squeezes the surface of the rubber ring.

[0013] Preferably, there are two rotating rods, which are fixedly installed on the surface of the friction cylinder in a mirror image arrangement, so that the rotating rods can be driven to rotate as the friction cylinder rotates.

[0014] Preferably, the shape of the movable groove is adapted to the shape of the friction cylinder, so that the friction cylinder can rotate inside the movable groove.

[0015] Compared with the prior art, this utility model provides a linear bearing with dustproof function, which has the following beneficial effects:

[0016] 1. This linear bearing with dustproof function is equipped with a dustproof mechanism. The rubber ring is fixedly installed on the surface of the mounting bracket, and the mounting bracket is bolted to the surface of the bearing body. When the bearing body moves, the rubber ring cleans the dust on the surface of the bearing body along the fixed shaft. Furthermore, during the movement of the bearing body, the friction cylinder moves along the fixed shaft, thereby driving the rotating rod to rotate. The semi-circular rotation at the end of the rotating rod squeezes the rubber ring, causing the surface of the rubber ring to deform, which facilitates the removal of dust adhering to the surface of the rubber ring, making it convenient for the rubber ring to clean the surface of the fixed shaft later.

[0017] 2. This linear bearing with dustproof function is equipped with a facilitating mechanism and a limiting ring. As dust is pushed along the arc surface of the rubber ring, it will fall off when it encounters the wave-like design of the limiting ring to prevent adhesion. Combined with the squeezing of the rotating rod, the dust will fall off. At the same time, the airbag design allows the rubber ring to better fit the surface of the fixed shaft for dust cleaning. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of a partial explosion of the rubber ring structure of this utility model;

[0020] Figure 3 This is a schematic diagram of a partial explosion of the friction cylinder structure of this utility model;

[0021] Figure 4This is a partial cross-sectional exploded view of the rubber ring structure of this utility model.

[0022] In the diagram: 1. Bearing body; 2. Mounting bracket; 3. Dustproof mechanism; 301. Rubber ring; 302. Movable groove; 303. Friction cylinder; 304. Rotating rod; 305. Movable hole; 306. Extrusion groove; 4. Promoting mechanism; 401. Mounting hole; 402. Airbag; 403. Limiting ring. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: a linear bearing with dustproof function, including a bearing body 1, a mounting bracket 2 detachably bolted to the surface of the bearing body 1, a dustproof mechanism 3 provided on the surface of the mounting bracket 2, and a promoting mechanism 4 provided on the surface of the mounting bracket 2. The dustproof mechanism 3 includes a rubber ring 301, a movable groove 302, a friction cylinder 303, a rotating rod 304, a movable hole 305, and a pressing groove 306.

[0024] In one embodiment of this utility model, the rubber ring 301 is fixedly installed on the arc surface of the mounting frame 2. The arc surface of the mounting frame 2 is provided with a movable groove 302 and a movable hole 305. The rotating rod 304 is movably connected to the inner wall of the movable hole 305. A friction cylinder 303 is fixedly installed on the surface of the rotating rod 304. The arc surface of the rubber ring 301 is provided with a compression groove 306.

[0025] In addition, the promoting mechanism 4 includes a mounting hole 401, which is opened inside the rubber ring 301. An airbag 402 is fixedly installed on the inner wall of the mounting hole 401. A limiting ring 403 is provided on the surface of the rubber ring 301. The limiting ring 403 is wavy and is located at the end of the rubber ring 301. The shape of the mounting hole 401 is adapted to the shape of the airbag 402, so that the airbag 402 can be installed inside the mounting hole 401, thereby allowing the end of the rubber ring 301 to better contact the surface of the fixed shaft. The limiting ring 403 is fixedly installed on the arc surface of the rubber ring 301.

[0026] In this embodiment of the invention, the shape of the movable hole 305 is adapted to the shape of the rotating rod 304. The end of the rotating rod 304 is semi-circular. As the rotating rod 304 rotates, the semi-circular end continuously contacts the rubber ring 301. When the rotating rod 304 rotates once, it partially squeezes the surface of the rubber ring 301. There are two rotating rods 304, which are fixedly installed on the surface of the friction cylinder 303 in a mirror image. As the friction cylinder 303 rotates, it can drive the rotating rod 304 to rotate. The shape of the movable groove 302 is adapted to the shape of the friction cylinder 303, so that the friction cylinder 303 can rotate inside the movable groove 302. At the same time, the rotating rod 304 passes through the movable hole 305. As a result, the friction cylinder 303 contacts the fixed shaft and rotates due to friction, which drives the rotating rod 304 to rotate.

[0027] In this invention, during use, the rubber ring 301 is fixedly installed on the surface of the mounting bracket 2, and the mounting bracket 2 is bolted to the surface of the bearing body 1. When the bearing body 1 is moved, the dust on the surface of the bearing body 1 along the fixed shaft is cleaned. Furthermore, during the movement of the bearing body 1, the friction cylinder 303 moves along the fixed shaft, thereby driving the rotating rod 304 to rotate. The semi-circular rotation of the end of the rotating rod 304 squeezes the rubber ring 301, causing the surface of the rubber ring 301 to deform, which facilitates the removal of dust adhering to the surface of the rubber ring 301, making it convenient for the rubber ring 301 to clean the surface of the fixed shaft in the future.

[0028] Furthermore, the setting of the limiting ring 403 allows the rubber ring 301 to be cleaned. As dust is pushed along the arc surface of the rubber ring 301, it will fall off when it encounters the wave-like setting of the limiting ring 403, reducing adhesion. Combined with the squeezing of the rotating rod 304, the dust will be forced to fall off. At the same time, the setting of the airbag 402 allows the rubber ring 301 to better fit the surface of the fixed shaft for dust cleaning.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A linear bearing with dustproof function, comprising a bearing body (1), wherein a mounting bracket (2) is detachably bolted to the surface of the bearing body (1), characterized in that: The surface of the mounting bracket (2) is provided with a dustproof mechanism (3), and the surface of the mounting bracket (2) is provided with a promoting mechanism (4). The dustproof mechanism (3) includes: A rubber ring (301) is fixedly installed on the arc surface of the mounting bracket (2). The arc surface of the mounting bracket (2) is provided with a movable groove (302) and a movable hole (305). A rotating rod (304) is movably connected to the inner wall of the movable hole (305). A friction cylinder (303) is fixedly installed on the surface of the rotating rod (304). An extrusion groove (306) is opened on the arc surface of the rubber ring (301).

2. A linear bearing with dustproof function according to claim 1, characterized in that: The promoting mechanism (4) includes a mounting hole (401) which is opened inside the rubber ring (301). An airbag (402) is fixedly installed on the inner wall of the mounting hole (401). A limit ring (403) is provided on the surface of the rubber ring (301).

3. A linear bearing with dustproof function according to claim 2, characterized in that: The limiting ring (403) is wavy and is located at the port of the rubber ring (301).

4. A linear bearing with dustproof function according to claim 2, characterized in that: The shape of the mounting hole (401) is adapted to the shape of the airbag (402).

5. A linear bearing with dustproof function according to claim 1, characterized in that: The shape of the movable hole (305) is adapted to the shape of the rotating rod (304), and the end of the rotating rod (304) is semi-circular.

6. A linear bearing with dustproof function according to claim 1, characterized in that: There are two rotating rods (304), which are fixedly installed on the surface of the friction cylinder (303) in a mirror image distribution.

7. A linear bearing with dustproof function according to claim 1, characterized in that: The shape of the movable groove (302) is adapted to the shape of the friction cylinder (303).

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