Noise-reducing tapered roller bearing

Abstract

The utility model provides a noise reduction tapered roller bearing, which relates to the technical field of bearings and comprises a bearing assembly, sealing assemblies are arranged at two ends of the bearing assembly, and a noise reduction assembly is arranged on the outer wall of the bearing assembly. The bearing assembly comprises an outer ring and an inner ring, a second rolling groove is formed in the outer surface wall of the inner ring, a first rolling groove is formed in the inner wall of the outer ring, a retainer is arranged between the outer ring and the inner ring, and a set of rollers are rotationally installed on the retainer and arranged on the inner walls of the first rolling groove and the second rolling groove in a rolling mode. The outer ring and the inner ring can relatively rotate through a group of rollers, and the sealing assembly can seal two ends of the bearing assembly, so that the probability that lubricating oil in the bearing assembly drips to the outside is reduced, the loss of the lubricating oil is reduced, the friction force in the bearing is further reduced, and meanwhile, external dust and impurities can be prevented from entering the bearing; and noise generated during rotation of the bearing is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a noise-reducing tapered roller bearing. Background Art

[0002] Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rollers installed. Single-row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to radial loads, an axial force component will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance it.

[0003] When existing bearings are in use, the outer ring is fixed and the inner ring rotates, so lubricating oil needs to be dripped into the rollers to reduce friction. However, the sealing between the inner and outer rings of the bearing is often poor, which causes the lubricating oil to drip easily or external dust and impurities to fall into the bearing, causing the bearing to make loud noises when rotating. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that poor sealing of the bearing leads to high noise when the bearing rotates, and proposes a noise-reducing tapered roller bearing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a noise-reducing tapered roller bearing, comprising a bearing assembly, both ends of the bearing assembly are provided with sealing assemblies, and the outer wall of the bearing assembly is provided with a noise-reducing assembly;

[0006] The bearing assembly includes an outer ring and an inner ring, the outer wall of the inner ring is provided with a second rolling groove, the inner wall of the outer ring is provided with a first rolling groove, a retaining frame is arranged between the outer ring and the inner ring, a group of rollers are rotatably installed on the retaining frame, a group of rollers are rollingly arranged on the inner walls of the first rolling groove and the second rolling groove, the outer ring and the inner ring can rotate relative to each other through a group of rollers, the sealing assembly can seal both ends of the bearing assembly, reduce the probability of lubricating oil in the bearing assembly dripping to the outside, reduce the loss of lubricating oil, and thereby reduce the friction in the bearing, and at the same time prevent external dust and impurities from entering the bearing, thereby reducing the noise generated when the bearing rotates.

[0007] Preferably, a first sealing groove is symmetrically opened at both ends of the outer wall of the outer ring, four installation grooves are opened on the inner wall of the first sealing groove, and threaded holes are set at the bottom ends of the inner walls of the four installation grooves, and a second sealing groove is symmetrically opened at both ends of the outer wall of the inner ring, and installation grooves and threaded holes are set to facilitate the fixed installation and disassembly of the sealing assembly.

[0008] Preferably, the sealing assembly comprises a sealing cover, and four mounting plates are fixedly mounted on the outer wall of the sealing cover, and bolts are arranged on the top ends of the four mounting plates, and the sealing cover can be fixedly connected to the bearing assembly by the bolts.

[0009] Preferably, the mounting plate matches the mounting groove, the bottom end of the sealing cover matches the first sealing groove and the second sealing groove respectively, the bolt matches the threaded hole, and the setting of the mounting groove facilitates placing the sealing cover on the outer ring. At the same time, the setting of the first sealing groove and the second sealing groove enables the sealing cover to be inserted into the interior thereof, thereby improving the sealing performance of the sealing cover to the bearing assembly.

[0010] Preferably, the noise reduction component includes a rubber sleeve, and a group of sound-absorbing panels are fixedly installed on the outer wall of the rubber sleeve. The rubber sleeve can effectively absorb and reduce the transmission of vibration energy, thereby reducing noise. The sound-absorbing panel is usually made of sound-absorbing material, and its special structure and material can absorb the energy of incident sound waves, further reducing the propagation and reflection of noise generated when the bearing assembly is in use.

[0011] Preferably, the two sealing covers are fixedly connected to the outer ring by bolts, and the rubber sleeve is fixedly connected to the outer ring.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when it is necessary to add lubricating oil to the bearing assembly, the lubricating oil can be dripped into the interior of the bearing assembly first. After the lubricating oil is dripped, the mounting plates on the two sealing covers are placed in the mounting grooves on the outer ring. At this time, the end faces of the sealing covers are inserted into the first sealing groove and the second sealing groove. Then, the sealing covers are fixed to the outer ring by bolts. At this time, the bearing assembly is sealed and protected by the two sealing covers, which reduces the probability of the lubricating oil dripping to the outside, reduces the loss of the lubricating oil, and thus reduces the friction in the bearing. At the same time, it can also prevent external dust and impurities from entering the bearing, thereby reducing the noise generated when the bearing rotates. At the same time, the sealing cover is connected to the outer ring by bolts, so that the sealing cover is easier to disassemble, so it is convenient to add lubricating oil or overhaul the bearing assembly.

[0014] 2. In the utility model, a rubber sleeve and a sound-absorbing board are provided. The rubber sleeve can effectively absorb and reduce the transmission of vibration energy, thereby reducing noise. The sound-absorbing board is usually made of sound-absorbing material. Its special structure and material can absorb the energy of incident sound waves, further reducing the propagation and reflection of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a noise-reducing tapered roller bearing proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of a noise-reducing tapered roller bearing proposed by the utility model;

[0017] Figure 3 An exploded view of a bearing assembly in a noise-reducing tapered roller bearing proposed by the utility model;

[0018] Figure 4 A cross-sectional view of a bearing assembly in a noise-reducing tapered roller bearing proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of a sealing component in a noise-reducing tapered roller bearing proposed by the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the structure of a noise reduction component in a noise reduction tapered roller bearing.

[0021] Legend: 1. Bearing assembly; 101. Outer ring; 102. First rolling groove; 103. First sealing groove; 104. Mounting groove; 105. Threaded hole; 106. Retaining rack; 107. Roller; 108. Inner ring; 109. Second rolling groove; 110. Second sealing groove; 2. Sealing assembly; 201. Sealing cover; 202. Mounting plate; 203. Bolt; 3. Noise reduction assembly; 301. Rubber sleeve; 302. Sound-absorbing panel. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] See also Figure 1-6 The utility model provides a technical solution: a noise-reducing tapered roller bearing, comprising a bearing assembly 1, sealing assemblies 2 are arranged at both ends of the bearing assembly 1, and a noise-reducing assembly 3 is arranged on the outer wall of the bearing assembly 1;

[0025] The bearing assembly 1 includes an outer ring 101 and an inner ring 108. The outer wall of the inner ring 108 is provided with a second rolling groove 109, and the inner wall of the outer ring 101 is provided with a first rolling groove 102. A retaining frame 106 is arranged between the outer ring 101 and the inner ring 108. A group of rollers 107 are rotatably installed on the retaining frame 106. A group of rollers 107 are rollingly arranged on the inner walls of the first rolling groove 102 and the second rolling groove 109. The outer ring 101 and the inner ring 108 can rotate relative to each other through the group of rollers 107. The sealing assembly 2 can seal both ends of the bearing assembly 1, reduce the probability of the lubricating oil in the bearing assembly 1 dripping to the outside, reduce the loss of the lubricating oil, and thereby reduce the friction in the bearing. At the same time, it can also prevent external dust and impurities from entering the bearing, thereby reducing the noise generated when the bearing rotates.

[0026] like Figure 1-6 As shown, first sealing grooves 103 are symmetrically provided at both ends of the outer wall of the outer ring 101, four mounting grooves 104 are provided on the inner wall of the first sealing groove 103, threaded holes 105 are provided at the bottom ends of the inner walls of the four mounting grooves 104, and second sealing grooves 110 are symmetrically provided at both ends of the outer wall of the inner ring 108. The mounting grooves 104 and threaded holes 105 are provided to facilitate the fixed installation and disassembly of the sealing assembly 2.

[0027] like Figure 1-6 As shown, the sealing assembly 2 includes a sealing cover 201 , and four mounting plates 202 are fixedly mounted on the outer wall of the sealing cover 201 . Bolts 203 are arranged on the top ends of the four mounting plates 202 . The sealing cover 201 can be fixedly connected to the bearing assembly 1 via the bolts 203 .

[0028] like Figure 1-6 As shown, the mounting plate 202 matches the mounting groove 104, the bottom end of the sealing cover 201 matches the first sealing groove 103 and the second sealing groove 110 respectively, the bolt 203 matches the threaded hole 105, and the setting of the mounting groove 104 facilitates placing the sealing cover 201 on the outer ring 101. At the same time, the setting of the first sealing groove 103 and the second sealing groove 110 enables the sealing cover 201 to be inserted into the interior thereof, thereby improving the sealing performance of the sealing cover 201 to the bearing assembly 1.

[0029] like Figure 1-6 As shown, the noise reduction component 3 includes a rubber sleeve 301, and a group of sound absorbing panels 302 are fixedly installed on the outer wall of the rubber sleeve 301. The rubber sleeve 301 can effectively absorb and reduce the transmission of vibration energy, thereby reducing noise. The sound absorbing panels 302 are usually made of sound absorbing materials, and their special structure and material can absorb the energy of incident sound waves, further reducing the propagation and reflection of noise generated when the bearing assembly 1 is in use.

[0030] like Figure 1-6As shown, the two sealing covers 201 are fixedly connected to the outer ring 101 via bolts 203 , and the rubber sleeve 301 is fixedly connected to the outer ring 101 .

[0031] Working principle: When it is necessary to add lubricating oil to the bearing assembly 1, the lubricating oil can be dripped into the interior of the bearing assembly 1 first. After the lubricating oil is dripped, the mounting plates 202 on the two sealing covers 201 are placed in the mounting grooves 104 on the outer ring 101. At this time, the end faces of the sealing covers 201 are inserted into the first sealing grooves 103 and the second sealing grooves 110, thereby improving the sealing of the bearing assembly 1. The sealing covers 201 are then fixed to the outer ring 101 by bolts 203. At this time, the bearing assembly 1 is sealed and protected by the two sealing covers 201, which reduces the probability of the lubricating oil dripping to the outside, reduces the loss of the lubricating oil, and thus reduces the shaft The friction inside the bearing can also be prevented from entering the bearing by external dust and impurities, thereby reducing the noise generated when the bearing rotates. At the same time, the sealing cover 201 is connected to the outer ring 101 by bolts 203, so that the sealing cover 201 is easier to disassemble, so it is convenient to add lubricating oil or overhaul the bearing assembly 1. A rubber sleeve 301 and a sound-absorbing plate 302 are provided. The rubber sleeve 301 can effectively absorb and reduce the transmission of vibration energy, thereby reducing noise. The sound-absorbing plate 302 is usually made of sound-absorbing material. Its special structure and material can absorb the energy of incident sound waves, further reducing the propagation and reflection of noise generated when the bearing assembly 1 is used.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A noise-reducing tapered roller bearing, characterized in that: It comprises a bearing assembly (1), both ends of the bearing assembly (1) are provided with sealing assemblies (2), and the outer wall of the bearing assembly (1) is provided with a noise reduction assembly (3); The bearing assembly (1) comprises an outer ring (101) and an inner ring (108), the outer wall of the inner ring (108) being provided with a second rolling groove (109), the inner wall of the outer ring (101) being provided with a first rolling groove (102), a retaining frame (106) being arranged between the outer ring (101) and the inner ring (108), a group of rollers (107) being rotatably mounted on the retaining frame (106), and the group of rollers (107) being rollingly arranged on the inner walls of the first rolling groove (102) and the second rolling groove (109).

2. A noise reducing tapered roller bearing according to claim 1, characterized in that: The outer wall of the outer ring (101) is symmetrically provided with first sealing grooves (103), the inner wall of the first sealing groove (103) is provided with four mounting grooves (104), the bottom ends of the inner walls of the four mounting grooves (104) are all provided with threaded holes (105), and the outer wall of the inner ring (108) is symmetrically provided with second sealing grooves (110).

3. A noise reducing tapered roller bearing according to claim 2, characterized in that: The sealing assembly (2) comprises a sealing cover (201), and four mounting plates (202) are fixedly mounted on the outer wall of the sealing cover (201), and bolts (203) are arranged on the top ends of the four mounting plates (202).

4. A noise reducing tapered roller bearing according to claim 3, characterized in that: The mounting plate (202) matches the mounting groove (104), the bottom end of the sealing cover (201) matches the first sealing groove (103) and the second sealing groove (110) respectively, and the bolt (203) matches the threaded hole (105).

5. The noise-reducing tapered roller bearing according to claim 3, characterized in that: The noise reduction component (3) comprises a rubber sleeve (301), and a group of sound absorbing panels (302) are fixedly mounted on the outer wall of the rubber sleeve (301).

6. A noise reducing tapered roller bearing according to claim 5, characterized in that: The two sealing covers (201) are fixedly connected to the outer ring (101) via bolts (203), and the rubber sleeve (301) is fixedly connected to the outer ring (101).

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