A dustproof device for a drive shaft

Abstract

The utility model relates to dustproof device's technical field especially, it is a kind of driving shaft dustproof device, its improve dustproof cover installation operation's convenience and fixed firm and reliable nature, improve the sealing protection effect between shaft seat and pivot;Including shaft seat and pivot, pivot rotation is installed on the shaft seat;Still include fixing device, tightening device, sealing ring, dustproof cover, protruding ring and elastic ring, sealing ring is installed on the protruding ring outside wall by fixing device, protruding ring is set on the right side end face of shaft seat, dustproof cover left end is fixedly connected with sealing ring, dustproof cover right end is rotatably connected with elastic ring, elastic ring is sleeved on the pivot outside wall, and setting has tightening device on elastic ring, and tightening device is used to tighten and fix elastic ring.

Description

Technical Field

[0001] This utility model relates to the technical field of dustproof devices, and in particular to a dustproof device for a drive shaft. Background Technology

[0002] In many work environments, such as construction sites, mines, and farmlands, the air is filled with a large amount of dust, sand, and other impurities. When the drive shaft rotates at high speed, the surrounding air forms an airflow. This dust and impurities can easily enter the internal structure of the drive shaft with the airflow, thereby affecting the normal operation of the drive shaft and shortening its service life.

[0003] Currently, among existing drive shaft dustproof devices, such as the patent with announcement number CN208935209U, this utility model discloses a drive shaft with a protective structure at both ends, including a cylindrical shell, a dustproof sleeve and an inner ball cage shell. The top and bottom of the inner wall of the cylindrical shell are movably connected with steel balls, and a retainer is movably connected between the opposite sides of the two steel balls. A drive shaft is movably connected to one side of the retainer, and one end of the drive shaft penetrates the cylindrical shell and extends to the outside of the cylindrical shell.

[0004] Existing protective structures have been found to have poor ease of installation and removal, and their installation is not very secure or reliable. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a drive shaft dustproof device that improves the convenience of dustproof sleeve installation and operation, the firmness and reliability of fixing, and the sealing and protection effect between the shaft seat and the rotating shaft.

[0006] This utility model discloses a dustproof device for a drive shaft, comprising a shaft seat and a rotating shaft, the rotating shaft being rotatably mounted on the shaft seat; it also includes a fixing device, a tightening device, a sealing ring, a dustproof sleeve, a protruding ring, and an elastic ring. The sealing ring is mounted on the outer wall of the protruding ring via the fixing device, the protruding ring being located on the right end face of the shaft seat; the left end of the dustproof sleeve is fixedly connected to the sealing ring, and the right end of the dustproof sleeve is rotatably connected to the elastic ring; the elastic ring is fitted onto the outer wall of the rotating shaft, and a tightening device is provided on the elastic ring for tightening and fixing the elastic ring; the sealing ring, dustproof sleeve, and elastic ring are fitted onto the outside of the rotating shaft, then the sealing ring is fixedly connected to the protruding ring via the fixing device, and then the tightening device is fitted onto the elastic ring, pressing the elastic ring against the rotating shaft. When the rotating shaft rotates, the rotating shaft drives the elastic ring to rotate, improving the convenience of dustproof sleeve installation and operation and the reliability of its fixation, and enhancing the sealing and protection effect between the shaft seat and the rotating shaft.

[0007] Preferably, the tightening device includes a first semicircular component, a second semicircular component, a U-shaped clip, and a set screw. The bottoms of the first and second semicircular components are hinged together, and the tops of the first and second semicircular components are respectively provided with protrusions. The U-shaped clip is rotatably installed on the outer wall of the protrusion of the first semicircular component, and the set screw is screwed onto the U-shaped clip. After the elastic ring is installed in place, the first and second semicircular components are fitted over the elastic ring, and then the U-shaped clip is rotatably fitted onto the protrusion of the second semicircular component. By rotating and moving the set screw, the set screw is pressed against the protrusion of the second semicircular component, thereby causing the set screw to drive the U-shaped clip to tighten the first semicircular component. This improves the overall effect of the first and second semicircular components in tightening and fixing the elastic ring, improves the convenience of loading and unloading operations, and improves the reliability of the structure.

[0008] Preferably, the fixing device includes a combination sleeve, a combination surface, a connector, and bolts. Two sets of combination sleeves are respectively fitted onto the outer wall of the protruding ring, and two sets of combination surfaces are respectively located on the right end faces of the two sets of combination sleeves. The two sets of combination sleeves and the two sets of combination surfaces form an integral cylindrical shape. The connector is located on the side of the two sets of combination sleeves. Multiple sets of bolts fix the connector located on the same side of the two sets of combination sleeves. The sealing ring is fitted onto the outside of the combination surface. The two sets of combination sleeves are fitted onto the outer wall of the protruding ring, and then the sealing ring is installed on the combination surface, thereby fixing the sealing ring to the shaft seat and improving the installation and positioning effect of the dust cover.

[0009] Preferably, it also includes an internal threaded hole and a screw. The internal threaded hole is provided on the assembly surface and the outer wall of the sealing ring, and the screw is installed inside the internal threaded hole. After the sealing ring is fitted onto the assembly surface, the screw is screwed into the internal threaded hole, thereby fixing the sealing ring to the assembly surface.

[0010] Preferably, it also includes a limiting ring, which is disposed on the outer wall of the elastic ring; the limiting ring limits the second semicircular part and the U-shaped clip, thereby improving the stability of the installation position of the second semicircular part and the U-shaped clip.

[0011] Preferably, it also includes a sealing gasket, which is disposed on the inner side wall of the assembly sleeve; to improve the anti-slip effect of the assembly sleeve and the protruding ring during installation.

[0012] Preferably, it also includes an anti-slip sleeve, which is fitted onto the outer wall of the elastic ring; this improves the anti-slip performance of the second semi-circular part and the U-shaped clip during installation.

[0013] Preferably, the dust cover is made of flexible rubber; this reduces the likelihood of rigid bending damage to the dust cover and improves its reliability.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the sealing ring, dust cover and elastic ring are fitted on the outside of the rotating shaft, and then the sealing ring is fixedly connected to the protruding ring through the fixing device. Then the tightening device is fitted on the elastic ring, so that the elastic ring and the rotating shaft are pressed together. When the rotating shaft rotates, the rotating shaft drives the elastic ring to rotate, which improves the convenience of dust cover installation and operation and the firmness and reliability of fixing, and improves the sealing and protection effect between the shaft seat and the rotating shaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0016] Figure 2 This is an isometric structural diagram of the connection between the dust cover and the elastic ring, etc.

[0017] Figure 3 This is a partial isometric structural diagram of the connection between the sealing ring and the dust cover, etc.

[0018] Figure 4 This is a partial isometric structural diagram of the connection between the U-shaped clip and the set screw, etc.

[0019] Figure 5 This is a partial isometric structural diagram showing the connection between the combined sleeve and the combined surface.

[0020] The following are labels in the attached diagram: 1. Shaft seat; 2. Rotating shaft; 3. Sealing ring; 4. Dust cover; 5. Protruding ring; 6. First semi-circular part; 7. Second semi-circular part; 8. U-shaped clip; 9. Set screw; 10. Combination sleeve; 11. Combination surface; 12. Connector; 13. Bolt; 14. Internal threaded hole; 15. Screw; 16. Limiting ring; 17. Sealing gasket; 18. Anti-slip sleeve; 19. Elastic ring. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] Example 1

[0023] like Figures 1 to 5As shown, a dustproof device for a drive shaft according to this utility model includes a shaft seat 1 and a rotating shaft 2, with the rotating shaft 2 rotatably mounted on the shaft seat 1; it also includes a fixing device, a tightening device, a sealing ring 3, a dustproof sleeve 4, a protruding ring 5, and an elastic ring 19. The sealing ring 3 is mounted on the outer wall of the protruding ring 5 by the fixing device. The protruding ring 5 is located on the right end face of the shaft seat 1. The left end of the dustproof sleeve 4 is fixedly connected to the sealing ring 3, and the right end of the dustproof sleeve 4 is rotatably connected to the elastic ring 19. The elastic ring 19 is fitted on the outer wall of the rotating shaft 2, and a tightening device is provided on the elastic ring 19 to tighten and fix the elastic ring 19.

[0024] like Figure 4 As shown, the tightening device includes a first semi-circular part 6, a second semi-circular part 7, a U-shaped clip 8, and a set screw 9. The bottoms of the first semi-circular part 6 and the second semi-circular part 7 are hinged together. The tops of the first semi-circular part 6 and the second semi-circular part 7 are respectively provided with protrusions. The U-shaped clip 8 is rotatably installed on the outer wall of the protrusion of the first semi-circular part 6, and the set screw 9 is screwed onto the U-shaped clip 8.

[0025] In this embodiment, the sealing ring 3, dust cover 4, and elastic ring 19 are fitted onto the outside of the rotating shaft 2. Then, the sealing ring 3 is fixedly connected to the protruding ring 5 through a fixing device. After that, the tightening device is fitted onto the elastic ring 19, so that the elastic ring 19 is pressed tightly against the rotating shaft 2. When the rotating shaft 2 rotates, the rotating shaft 2 drives the elastic ring 19 to rotate, which improves the convenience of the dust cover 4 installation and operation and the firmness and reliability of the fixation, and improves the sealing and protection effect between the shaft seat 1 and the rotating shaft 2.

[0026] Example 2

[0027] Based on Example 1, such as Figure 3 As shown, this utility model discloses a dustproof device for a drive shaft. The fixing device includes a combination sleeve 10, a combination surface 11, a connector 12, and bolts 13. Two sets of combination sleeves 10 are respectively fitted onto the outer side wall of the protruding ring 5. Two sets of combination surfaces 11 are respectively set on the right end face of the two sets of combination sleeves 10. The two sets of combination sleeves 10 and the two sets of combination surfaces 11 form an integral cylindrical shape. The connector 12 is set on the side of the two sets of combination sleeves 10. Multiple sets of bolts 13 fix the connector 12 located on the same side of the two sets of combination sleeves 10. The sealing ring 3 is fitted onto the outside of the combination surface 11.

[0028] like Figure 5 As shown, it also includes an internal threaded hole 14 and a screw 15. The internal threaded hole 14 is provided on the outer wall of the assembly surface 11 and the sealing ring 3, and the screw 15 is installed inside the internal threaded hole 14.

[0029] like Figure 5 As shown, it also includes a limiting ring 16, which is disposed on the outer wall of the elastic ring 19.

[0030] like Figure 5 As shown, it also includes a sealing gasket 17, which is disposed on the inner side wall of the combined sleeve 10.

[0031] like Figure 5 As shown, it also includes an anti-slip sleeve 18, which is fitted onto the outer wall of the elastic ring 19.

[0032] like Figure 1 As shown, the dust cover 4 is made of flexible rubber.

[0033] In this embodiment, after the elastic ring 19 is installed in place, the first semicircular part 6 and the second semicircular part 7 are fitted onto the outside of the elastic ring 19. Then, the U-shaped clip 8 is rotated and fitted onto the protrusion of the second semicircular part 7. By rotating and moving the set screw 9, the set screw 9 is pressed against the protrusion of the second semicircular part 7, thereby causing the set screw 9 to drive the U-shaped clip 8 to tighten the first semicircular part 6. This improves the overall effect of the first semicircular part 6 and the second semicircular part 7 in tightening and fixing the elastic ring 19, improves the convenience of loading and unloading operations, and improves the reliability of the structure. The two sets of combined sleeves 10 are fitted onto the outer wall of the protruding ring 5, and then the sealing ring 3 is installed on the combined surface 11, thereby fixing the sealing ring 3 to the shaft seat 1 and improving the installation and positioning effect of the dust cover 4.

[0034] This utility model discloses a dustproof device for a drive shaft. When in operation, a sealing ring 3, a dustproof sleeve 4, and an elastic ring 19 are fitted onto the outside of a rotating shaft 2. Then, the sealing ring 3 is fixedly connected to a protruding ring 5 through a fixing device. After that, a tightening device is fitted onto the elastic ring 19, so that the elastic ring 19 is pressed tightly against the rotating shaft 2. When the rotating shaft 2 rotates, the rotating shaft 2 drives the elastic ring 19 to rotate.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dustproof device for a drive shaft, comprising a shaft seat (1) and a rotating shaft (2), wherein the rotating shaft (2) is rotatably mounted on the shaft seat (1); characterized in that, It also includes a fixing device, a tightening device, a sealing ring (3), a dust cover (4), a protruding ring (5), and an elastic ring (19). The sealing ring (3) is installed on the outer wall of the protruding ring (5) by the fixing device. The protruding ring (5) is set on the right end face of the shaft seat (1). The left end of the dust cover (4) is fixedly connected to the sealing ring (3), and the right end of the dust cover (4) is rotatably connected to the elastic ring (19). The elastic ring (19) is fitted on the outer wall of the rotating shaft (2), and a tightening device is provided on the elastic ring (19). The tightening device is used to tighten and fix the elastic ring (19).

2. The dustproof device for a drive shaft as described in claim 1, characterized in that, The tightening device includes a first semi-circular part (6), a second semi-circular part (7), a U-shaped clip (8), and a set screw (9). The bottoms of the first semi-circular part (6) and the second semi-circular part (7) are hinged together. The tops of the first semi-circular part (6) and the second semi-circular part (7) are respectively provided with protrusions. The U-shaped clip (8) is rotatably installed on the outer wall of the protrusion of the first semi-circular part (6). The set screw (9) is screwed onto the U-shaped clip (8).

3. The dustproof device for a drive shaft as described in claim 1, characterized in that, The fixing device includes a combination sleeve (10), a combination surface (11), a connector (12), and bolts (13). Two sets of combination sleeves (10) are respectively fitted on the outer wall of the protruding ring (5). Two sets of combination surfaces (11) are respectively set on the right end face of the two sets of combination sleeves (10). The two sets of combination sleeves (10) and the two sets of combination surfaces (11) form an integral cylindrical shape. The connector (12) is set on the side of the two sets of combination sleeves (10). Multiple sets of bolts (13) fix the connector (12) located on the same side of the two sets of combination sleeves (10). The sealing ring (3) is fitted on the outside of the combination surface (11).

4. A dustproof device for a drive shaft as described in claim 3, characterized in that, It also includes an internal threaded hole (14) and a screw (15), the internal threaded hole (14) being provided on the outer wall of the assembly surface (11) and the sealing ring (3), and the screw (15) being installed inside the internal threaded hole (14).

5. A dustproof device for a drive shaft as described in claim 1, characterized in that, It also includes a limiting ring (16), which is set on the outer wall of the elastic ring (19).

6. A dustproof device for a drive shaft as described in claim 3, characterized in that, It also includes a sealing gasket (17), which is disposed on the inner side wall of the assembly sleeve (10).

7. A dustproof device for a drive shaft as described in claim 1, characterized in that, It also includes an anti-slip sleeve (18), which is fitted onto the outer wall of the elastic ring (19).

8. A dustproof device for a drive shaft as described in claim 1, characterized in that, The dust cover (4) is made of flexible rubber.

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