Noise-reducing spherical roller coupling

Abstract

The utility model discloses a noise reduction spherical roller coupling which comprises a base, the top of the base is fixedly connected with a noise reduction cover, a coupling body is arranged in the noise reduction cover, one end of the coupling body is sleeved with a protective cover, and the interior of the noise reduction cover is fixedly connected with a limiting ring. The top and the bottom of the limiting ring are both movably connected with a plurality of rolling shafts, the rolling shafts located at the bottom of the limiting ring make contact with the coupler body, a plurality of containing grooves are formed in the inner wall of the circumference of the protective cover, elastic plates are fixedly connected into the containing grooves, the side faces of the elastic plates are fixedly connected with positioning balls, and the positioning balls make contact with the coupler body. Noise reduction can be achieved during operation of the coupler body through the protective cover, meanwhile, a worker can conveniently add lubricating oil to the rolling shaft through the plug, and connection between the coupler body and the protective cover can be tighter through the rubber ring.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical roller couplings, in particular to a noise-reducing spherical roller coupling. Background Art

[0002] The spherical roller coupling has the performance of compensating the relative displacement of two shafts. It has a compact structure, light weight, high reliability, and easy installation. It is used on crane trolleys and the mechanism is easy to arrange.

[0003] Currently, the spherical roller couplings commonly found on the market connect to shafts by mostly using bolts to lock the shafts, thereby clamping the shafts. However, there are notches on the outer surface of the couplings, which can generate a lot of noise during operation, causing hearing impairment to workers. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a noise-reducing spherical roller coupling.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A noise-reducing spherical roller coupling comprises a base, a silencer cover fixedly connected to the top of the base, a coupling body provided inside the silencer cover, a protective cover sleeved on one end of the coupling body, a limit ring fixedly connected to the inside of the silencer cover, a plurality of rollers movably connected to the top and bottom of the limit ring, and the rollers located at the bottom of the limit ring are in contact with the coupling body, a plurality of placement grooves are provided on the circumferential inner wall of the protective cover, an elastic plate is fixedly connected to the inside of the placement groove, a positioning bead is fixedly connected to the side of the elastic plate, and the positioning bead is in contact with the coupling body.

[0007] As a further solution of the present invention, a groove is provided on the side of the silencer cover, and the coupling body is engaged with the groove.

[0008] As a further solution of the present invention, a rubber ring is fixedly connected to the side of the shield, and the rubber ring is in contact with the coupling body.

[0009] As a further solution of the present invention, a plurality of ventilation holes are provided inside the limiting ring, and the ventilation holes are evenly distributed.

[0010] As a further solution of the present invention, a filling port is provided on the top of the silencer cover, and a plug is movably connected to the filling port.

[0011] As a further solution of the present invention, a sealing gasket is fixedly connected to the top of the plug, and the sealing gasket is in contact with the silencer cover.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a protective cover to shield the notch on the outer surface of the coupling body, so that the coupling body can reduce noise during operation, avoid the large noise generated during the operation of the coupling causing hearing impairment to the staff, and improve the noise reduction effect of the device.

[0014] 2. The utility model can not only disassemble the plug, making it convenient for the staff to add lubricating oil to the roller, but also make the connection between the silencer cover and the plug tighter through the sealing gasket, avoiding oil leakage and improving the convenience of the device.

[0015] 3. The utility model makes the connection between the coupling body and the silencer cover and the protective cover tighter through the coordinated use of the groove and the rubber ring, thereby improving the sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a noise-reducing spherical roller coupling proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a noise-reducing spherical roller coupling proposed by the present invention;

[0018] Figure 3 This is a partial cross-sectional structural diagram of a noise-reducing spherical roller coupling proposed by the present invention;

[0019] Figure 4 This is a partially enlarged structural schematic diagram of a noise-reducing spherical roller coupling proposed by the utility model.

[0020] In the figure: 1. Base; 2. Protective cover; 3. Coupling body; 4. Silencer; 5. Filling port; 6. Plug; 7. Limiting ring; 8. Roller; 9. Air vent; 10. Groove; 11. Rubber ring; 12. Elastic plate; 13. Positioning bead; 14. Placement groove; 15. Sealing gasket. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. The embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 4A noise-reducing spherical roller coupling comprises a base 1, a silencer cover 4 is fixed to the top of the base 1 by bolts, a coupling body 3 is arranged inside the silencer cover 4, one end of the coupling body 3 is sleeved with a shield 2, a limit ring 7 is fixed to the inside of the silencer cover 4 by bolts, a plurality of rollers 8 are rotatably connected to the top and bottom of the limit ring 7, and the rollers 8 at the bottom of the limit ring 7 are in contact with the coupling body 3, a plurality of placement grooves 14 are opened on the inner wall of the circumference of the shield 2, and the interior of the placement groove 14 is fixed by bolts. There is an elastic plate 12, and a positioning bead 13 is adhered to the side of the elastic plate 12, and the positioning bead 13 is in contact with the coupling body 3. The shield 2 is inserted into one end of the coupling body 3, and the positioning bead 13 is in close contact with the coupling body 3 through the elastic plate 12, thereby connecting the coupling body 3 and the shield 2. At this time, the notch on the outer surface of the coupling body 3 is blocked, so that the outer surface of the coupling body 3 is smooth and complete, avoiding the coupling body 3 from generating loud noise during operation.

[0023] In the present invention, it should be noted that a groove 10 is provided on the side of the silencer 4, and the coupling body 3 is snapped into the groove 10, and a rubber ring 11 is bonded to the side of the protective cover 2, and the rubber ring 11 is in contact with the coupling body 3. Through the coordinated use of the groove 10 and the rubber ring 11, the connection between the coupling body 3, the silencer 4 and the protective cover 2 is tighter. A plurality of air holes 9 are provided inside the limiting ring 7, and the air holes 9 are evenly distributed, so that the lubricating oil can penetrate through the air holes 9. A filling port 5 is provided on the top of the silencer 4, and a plug 6 is connected to the filling port 5 through an internal thread. The plug 6 is rotated to move it out of the filling port 5, and then lubricating oil is added to the filling port 5 so that the lubricating oil enters the roller 8. A sealing gasket 15 is bonded to the top of the plug 6, and the sealing gasket 15 is in contact with the silencer 4. The sealing gasket 15 can make the connection between the silencer 4 and the plug 6 tighter, thereby avoiding oil leakage.

[0024] Working principle: When noise reduction is required, the shield 2 is inserted into one end of the coupling body 3, and the positioning bead 13 is brought into close contact with the coupling body 3 through the elastic plate 12, thereby connecting the coupling body 3 and the shield 2. At this time, the notch on the outer surface of the coupling body 3 is blocked, so that the outer surface of the coupling body 3 is smooth and complete, thereby avoiding the coupling body 3 from generating loud noise during operation. When lubricating oil needs to be added to the inside of the device, the plug 6 is turned to move it out of the filling port 5, and then lubricating oil is added into the filling port 5 to allow the lubricating oil to enter the roller 8.

[0025] Finally, it should be noted that those skilled in the art may modify the technical solutions described in the aforementioned embodiments or replace some of the technical features with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of this utility model shall be included within the scope of protection of this utility model.

Claims

1. A noise-reducing spherical roller coupling, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a silencer cover (4), the interior of the silencer cover (4) is provided with a coupling body (3), one end of the coupling body (3) is sleeved with a shield (2), the interior of the silencer cover (4) is fixedly connected to a limit ring (7), the top and bottom of the limit ring (7) are movably connected to a plurality of rollers (8), and the rollers (8) located at the bottom of the limit ring (7) are in contact with the coupling body (3), the circumferential inner wall of the shield (2) is provided with a plurality of placement grooves (14), the interior of the placement grooves (14) is fixedly connected to an elastic plate (12), the side of the elastic plate (12) is fixedly connected to a positioning bead (13), and the positioning bead (13) is in contact with the coupling body (3).

2. The noise-reducing spherical roller coupling according to claim 1, characterized in that: A groove (10) is provided on the side of the muffler cover (4), and the coupling body (3) is engaged with the groove (10).

3. The noise-reducing spherical roller coupling according to claim 2, characterized in that: A rubber ring (11) is fixedly connected to the side surface of the protective cover (2), and the rubber ring (11) is in contact with the coupling body (3).

4. The noise-reducing spherical roller coupling according to claim 1, characterized in that: The interior of the limiting ring (7) is provided with a plurality of air holes (9), and the air holes (9) are evenly distributed.

5. The noise-reducing spherical roller coupling according to claim 1, characterized in that: A filling port (5) is provided on the top of the muffler cover (4), and a plug (6) is movably connected in the filling port (5).

6. The noise-reducing spherical roller coupling according to claim 5, characterized in that: A sealing gasket (15) is fixedly connected to the top of the plug (6), and the sealing gasket (15) is in contact with the silencer cover (4).

Images