Double-row type mute bearing

Abstract

The utility model relates to the technical field of bearings, in particular to a double-row type mute bearing which comprises an outer ring, an inner ring and a plurality of rollers rotationally arranged between the outer ring and the inner ring, a covering ring is detachably installed on one side wall of the outer ring, and a plurality of triangular grooves are formed in the side wall, corresponding to the covering ring, of the outer ring. The double-row type bearing has the beneficial effects that the outer ring, the covering ring, the triangular grooves, the limiting plate I, the limiting plate II, the connecting column, the silencing cotton and the pulling mechanism are matched with one another, and when the silencing cotton is mounted in the outer ring of the double-row type bearing, the operation is convenient; and the multiple pieces of silencing cotton are tightly attached to the interiors of the corresponding triangular grooves, so that a good sound absorption effect can be achieved during operation of the double-row bearing, the situation that the attention of workshop workers is affected by sound is avoided, and the work efficiency is prevented from being affected. Meanwhile, the shape of the triangular groove has good stability for the structure of the outer ring.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a double-row silent bearing. Background Art

[0002] Double row bearings are a type of bearing that can withstand radial and axial loads from two directions. They are usually composed of two rollers or balls mounted opposite to each other and arranged between an inner and outer ring. Double row bearings are usually used in applications that need to withstand large loads or require high rigidity, such as mechanical transmission systems, wind turbines, steel industry and other fields.

[0003] Double-row bearings may generate noise during operation because the contact between the rolling elements (such as rollers or balls) inside the bearing and the inner and outer rings will generate friction and rolling noise, especially when rotating at high speeds. The noise generated by double-row bearings during operation can easily affect the attention of workshop workers and indirectly affect work efficiency. To this end, we propose a double-row silent bearing. Utility Model Content

[0004] The purpose of the utility model is to provide a double-row silent bearing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-row silent bearing, comprising an outer ring, an inner ring and a plurality of rollers rotatably arranged between the outer ring and the inner ring, a side wall of the outer ring being detachably mounted with a covering ring, and a plurality of triangular grooves are provided on the side wall of the outer ring corresponding to the covering ring, a silencer mechanism is provided inside the plurality of triangular grooves, the silencer mechanism comprises a limiting plate 1 and a limiting plate 2, the limiting plate 1 and the limiting plate 2 are respectively fitted on the inner two side edges of the triangular groove, a side wall of the limiting plate 2 is fixedly connected with a connecting column, the connecting column is fixedly passed through the inner wall of the limiting plate 1, silencer cotton is fixedly connected between the limiting plate 1 and the limiting plate 2 and the outer wall of the connecting column, the silencer cotton is tightly fitted on the inner wall of the triangular groove, and a pulling mechanism is provided inside the connecting column.

[0006] Preferably, the pulling mechanism includes a columnar groove, which is opened at one end of the connecting column away from the second limit plate, and a pulling column is slidably inserted into the interior of the columnar groove, a spring is fixedly connected between one end of the pulling column and the inner circular surface of the columnar groove, and the other end of the pulling column is tightly fitted with the outer wall of the covering ring, and a guiding mechanism is provided between the pulling column and the columnar groove.

[0007] Preferably, the guide mechanism includes two guide blocks and guide grooves, the two guide blocks are symmetrically fixedly connected to the outer wall of the pull column near the spring, the two guide grooves are respectively opened on the inner wall of the columnar groove corresponding to the two guide blocks, and the two guide blocks are respectively slidably matched with the two guide grooves.

[0008] Preferably, a plurality of annular grooves are formed on the outer wall of the pull column, and the plurality of annular grooves are arranged in an annular array.

[0009] Preferably, the sound-absorbing cotton is made of polyester fiber material.

[0010] Preferably, the plurality of triangular grooves are arranged in a circular array around the center of the outer ring.

[0011] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation of the outer ring, the cover ring, the triangular groove, the first limit plate, the second limit plate, the connecting column, the muffler cotton and the pulling mechanism, when multiple muffler cottons are installed in the outer ring of the double-row bearing, it is not only convenient to operate, but also multiple muffler cottons are tightly fitted in the corresponding triangular grooves, which can achieve a good sound absorption effect when the double-row bearing is running, avoiding the sound from affecting the attention of the workshop staff and affecting the work efficiency. At the same time, the shape of the triangular groove has good stability for the structure of the outer ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a display diagram of the cover ring of the utility model after being disassembled;

[0014] Figure 3 This is a structural diagram showing the sound-absorbing cotton of the utility model;

[0015] Figure 4 This is a diagram showing the outer ring and triangular groove of the utility model;

[0016] Figure 5 It is a partial cross-sectional view of the sound-absorbing cotton of the utility model;

[0017] Figure 6 For the utility model Figure 5 Schematic diagram of the structure at point A in the middle.

[0018] In the attached drawings, the parts represented by each number are listed as follows: 1. Outer ring; 2. Inner ring; 3. Limit plate 1; 4. Roller; 5. Cover ring; 6. Limit plate 2; 7. Silencer cotton; 8. Connecting column; 9. Pull column; 10. Triangular groove; 11. Columnar groove; 12. Spring; 13. Guide block; 14. Guide groove; 15. Annular groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 6 A double-row silent bearing shown in the figure comprises an outer ring 1, an inner ring 2 and a plurality of rollers 4 rotatably arranged between the outer ring 1 and the inner ring 2. A cover ring 5 is detachably installed on one side wall of the outer ring 1, and a plurality of triangular grooves 10 are provided on the side wall of the outer ring 1 corresponding to the cover ring 5. A silencer mechanism is provided inside each of the plurality of triangular grooves 10. The silencer mechanism comprises a limit plate 1 3 and a limit plate 2 6. The limit plate 1 3 and the limit plate 2 6 are respectively fitted on the inner side edges of the triangular groove 10. A connecting column 8 is fixedly connected to one side wall of the limit plate 2 6. The connecting column 8 is fixedly passed through the inner wall of the limit plate 1 3. Silencing cotton 7 is fixedly connected between the limit plate 1 3 and the limit plate 2 6 and the outer wall of the connecting column 8. The silencing cotton 7 is tightly fitted on the inner wall of the triangular groove 10, and a pulling mechanism is provided inside the connecting column 8.

[0022] See also Figure 3 and Figure 5 In the figure, the sound-absorbing cotton 7 is made of polyester fiber material; the sound-absorbing cotton 7 made of polyester fiber material has good sound-absorbing performance.

[0023] See also Figure 4 In the figure, multiple triangular grooves 10 are arranged in a circular array around the center of the outer ring 1; the multiple triangular grooves 10 are arranged evenly and orderly, and the multiple sound-absorbing cottons 7 are arranged evenly and orderly, thereby enhancing the sound absorption effect of the multiple sound-absorbing cottons 7.

[0024] In this embodiment, in order to reduce the noise generated by the operation of the double-row bearing, multiple silencer cottons 7 are installed in turn in multiple triangular grooves 10 in the outer ring 1. The specific operation is: first, hold the limit plate 1 3 and move it into a corresponding triangular groove 10. The limit plate 1 3 can drive the limit plate 2 6 to be inserted into the triangular groove 10 through the connecting column 8. During this process, the originally fluffy silencer cotton 7 can be deformed and tightly fit in the triangular groove 10 until the limit plate 1 3 and the limit plate 2 6 are completely inserted into the triangular groove 10. Then, according to the same operation, all the triangular grooves 10 can be tightly stuffed with the silencer cotton 7, and then the cover ring 5 can be installed at the opening of the outer ring 1 with the help of screws to seal the multiple silencer cottons 7.

[0025] It should be noted that when multiple silencer cottons 7 are installed in the outer ring 1 of the double-row bearing, it is not only easy to operate, but also because the multiple silencer cottons 7 are tightly fitted in the corresponding triangular grooves 10, it can achieve a good sound absorption effect when the double-row bearing is running, avoiding the sound from affecting the attention of the workshop staff and affecting the work efficiency. At the same time, the shape of the triangular groove 10 has good stability for the structure of the outer ring 1.

[0026] Embodiment 2

[0027] See also Figure 3 , Figure 5 and Figure 6 The present embodiment further explains the first embodiment. The pulling mechanism in the figure includes a columnar groove 11. The columnar groove 11 is opened at one end of the connecting column 8 away from the limiting plate 6, and a pulling column 9 is slidably inserted into the interior of the columnar groove 11. A spring 12 is fixedly connected between one end of the pulling column 9 and the inner circular surface of the columnar groove 11, and the other end of the pulling column 9 is tightly fitted with the outer wall of the covering ring 5, and a guiding mechanism is provided between the pulling column 9 and the columnar groove 11.

[0028] See also Figure 5 and Figure 6 In the figure, the guide mechanism includes two guide blocks 13 and guide grooves 14. The two guide blocks 13 are symmetrically fixedly connected to the outer wall of the pull column 9 near the spring 12. The two guide grooves 14 are respectively opened on the inner wall of the columnar groove 11 corresponding to the two guide blocks 13. The two guide blocks 13 are respectively slidably matched with the two guide grooves 14.

[0029] See also Figure 6 In the figure, a plurality of annular grooves 15 are provided on the outer wall of the pull column 9, and the plurality of annular grooves 15 are arranged in an annular array; by providing the annular grooves 15, an anti-slip effect can be achieved when the pull column 9 is pulled.

[0030] In this embodiment, when the limit plate 1 3 and the limit plate 2 6 are fully inserted into the triangular groove 10, the pull column 9 at this time will extend out of the connecting column 8 under the action of the spring 12. When the cover ring 5 is installed at the opening of the outer ring 1 with the help of screws, the cover ring 5 can squeeze the pull column 9 into the columnar groove 11 at the end of the connecting column 8. The pull column 9 can squeeze the spring 12 connected to the columnar groove 11, and the pull column 9 can drive the two guide blocks 13 on its outer wall to slide in the two guide grooves 14 on the inner wall of the columnar groove 11. When the cover ring 5 is removed from the opening of the outer ring 1, the pull column 9 will automatically extend out of the connecting column 8 under the action of the spring 12. At this time, the limit plate 1 3 and the limit plate 2 6 can be easily taken out of the triangular groove 10 by holding the pull column 9, and the silencer cotton 7 is also taken out, so that the silencer cotton 7 can be easily disassembled for maintenance, which brings convenience.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-row silent bearing, comprising an outer ring (1), an inner ring (2) and a plurality of rollers (4) rotatably arranged between the outer ring (1) and the inner ring (2), characterized in that: A cover ring (5) is detachably mounted on one side wall of the outer ring (1), and a plurality of triangular grooves (10) are provided on the side wall of the outer ring (1) corresponding to the cover ring (5), and a silencer mechanism is provided inside each of the plurality of triangular grooves (10), wherein the silencer mechanism comprises a limit plate 1 (3) and a limit plate 2 (6), wherein the limit plate 1 (3) and the limit plate 2 (6) are respectively fitted on the inner side edges of the triangular groove (10), and a connecting column (8) is fixedly connected to one side wall of the limit plate 2 (6), and the connecting column (8) is fixedly passed through the inner wall of the limit plate 1 (3), and a silencer cotton (7) is fixedly connected between the limit plate 1 (3) and the limit plate 2 (6) and the outer wall of the connecting column (8), and the silencer cotton (7) is tightly fitted on the inner wall of the triangular groove (10), and a pulling mechanism is provided inside the connecting column (8).

2. A double-row silent bearing according to claim 1, characterized in that: The pulling mechanism comprises a columnar groove (11), the columnar groove (11) is arranged at one end of the connecting column (8) away from the second limiting plate (6), and a pulling column (9) is slidably inserted into the columnar groove (11), a spring (12) is fixedly connected between one end of the pulling column (9) and the inner circular surface of the columnar groove (11), and the other end of the pulling column (9) is tightly fitted with the outer wall of the covering ring (5), and a guiding mechanism is provided between the pulling column (9) and the columnar groove (11).

3. A double-row silent bearing according to claim 2, characterized in that: The guide mechanism comprises two guide blocks (13) and guide grooves (14); the two guide blocks (13) are symmetrically fixedly connected to the outer wall of the pull column (9) near the spring (12); the two guide grooves (14) are respectively arranged on the inner wall of the columnar groove (11) corresponding to the two guide blocks (13); the two guide blocks (13) are respectively slidably matched with the two guide grooves (14).

4. A double-row silent bearing according to claim 2, characterized in that: A plurality of annular grooves (15) are provided on the outer wall of the pulling column (9), and the plurality of annular grooves (15) are arranged in an annular array.

5. The double-row silent bearing according to claim 1, characterized in that: The sound-absorbing cotton (7) is made of polyester fiber material.

6. A double-row silent bearing according to claim 1, characterized in that: The plurality of triangular grooves (10) are arranged in a ring array around the center of the outer ring (1).

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