Low noise deep groove ball bearing for air conditioner fan

Abstract

The utility model provides air conditioner fan low noise deep groove ball bearing relates to bearing technical field, include: outer shaft ring and sealed noise reduction structure, the inside of outer shaft ring is equipped with inner shaft, is equipped with ball between inner shaft and outer shaft ring, the outside of outer shaft ring and inner shaft is equipped with sealed noise reduction structure, sealed noise reduction structure contains following subassembly: sound absorbing ring: pastes in the outside of outer shaft ring, and the both ends of sound absorbing ring are equipped with thread ring groove, through setting sealed noise reduction structure, through pasting sound absorbing material in the outside of bearing, can high -efficiently absorb the mechanical vibration and noise energy of bearing operation, reduce the noise propagation intensity, effectively improve the noise problem of air conditioner fan operation, set up the sealing ring between outer shaft and inner shaft can effectively block the invasion of outside dust, fiber and other impurities, avoid dust impurity aggravating the abrasion of ball and raceway, eliminate the noise hidden danger caused by ball movement instability, thereby all -round promotion bearing's noise reduction performance and operation stability.

Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, and more specifically, it relates to a low-noise deep groove ball bearing for air conditioning fans. Background Technology

[0002] Deep groove ball bearings, as one of the most widely used types of rolling bearings, play a crucial role in air conditioning fans. They mainly consist of an inner ring, an outer ring, rolling elements (steel balls), and a cage. During operation, the motor drives the inner ring to rotate, and the steel balls roll between the raceways of the inner and outer rings, thus rotating the fan blades. However, existing deep groove ball bearings for air conditioning fans have several problems in practical use, with noise being a particularly prominent issue.

[0003] Based on the above, there may be impurities such as dust and debris in the air conditioning operating environment. Once these impurities enter the bearing, they will aggravate the wear between the balls and the raceway, and also cause instability in the movement of the rolling elements, thus generating noise. Utility Model Content

[0004] To address the aforementioned technical problems, this disclosure relates to a low-noise deep groove ball bearing for air conditioning fans. This bearing addresses the issue of dust, debris, and other impurities causing instability in the rolling element movement and consequently generating noise once these impurities enter the bearing. By implementing a sealed noise reduction structure and attaching sound-absorbing material to the outside of the bearing, the bearing can efficiently absorb the mechanical vibration and noise energy generated during operation, reducing noise propagation intensity and effectively improving the noise problem during air conditioning fan operation. Simultaneously, a sealing ring between the outer and inner shafts effectively blocks the intrusion of external dust, fibers, and other impurities, preventing dust and impurities from exacerbating wear on the balls and raceways, and eliminating noise hazards caused by ball movement instability. This comprehensively improves the bearing's noise reduction performance and operational stability.

[0005] This utility model of a low-noise deep groove ball bearing for air conditioning fans is achieved through the following specific technical means:

[0006] The first aspect of this disclosure provides a low-noise deep groove ball bearing for an air conditioning fan, specifically including: an outer shaft ring and a sealing and noise reduction structure;

[0007] The outer ring has an inner shaft inside, and ball bearings are provided between the inner shaft and the outer ring. A sealing and noise reduction structure is provided on the outer side of the outer ring and the inner shaft. The sealing and noise reduction structure includes the following components:

[0008] Sound-absorbing ring: It is attached to the outside of the outer shaft ring, and the two ends of the sound-absorbing ring are provided with threaded ring grooves;

[0009] Connecting end caps: Located at both ends of the sound-absorbing ring, the end of the connecting end cap near the sound-absorbing ring is provided with a threaded protrusion ring, which meshes with the threaded ring groove. The connecting end cap is provided with an assembly groove, and the assembly groove is provided with a threaded hole.

[0010] Sealing ring: Located between the outer shaft ring and the inner shaft, the outer side of the sealing ring is fixedly connected to an assembly arc plate, and the assembly arc plate has a mounting hole, which is aligned with the threaded hole.

[0011] Fastening bolts are used to secure the installation in the mounting holes and threaded holes.

[0012] In at least some embodiments, the inner wall of the sealing ring is in close contact with the outer wall of the inner shaft.

[0013] In at least some embodiments, a retainer structure is provided on the outer side of the ball. The retainer structure includes a first retainer, a ball groove, and a connecting plate. The first retainer is provided at one end of the outer side of the ball. The ball groove is formed on the first retainer. The connecting plate is fixedly connected between the first retainers.

[0014] In at least some embodiments, the connecting plate has a through-type docking slot, and the connecting plate has a connecting external hole at the docking slot.

[0015] In at least some embodiments, a second retainer is provided on the opposite side of the first retainer, and insert protrusions are fixedly connected to both ends of the second retainer. The insert protrusions are provided with mating inner holes, which are aligned with the connecting outer holes.

[0016] In at least some embodiments, connecting screws are engaged in the mating inner hole and the connecting outer hole.

[0017] This utility model provides a low-noise deep groove ball bearing for air conditioning fans, the advantages of which are:

[0018] By setting up a sealed noise reduction structure and attaching sound-absorbing material to the outside of the bearing, the mechanical vibration and noise energy generated during bearing operation can be efficiently absorbed, reducing the noise transmission intensity and effectively improving the noise problem during air conditioner fan operation. At the same time, the sealing ring set between the outer and inner shafts can effectively block the intrusion of external dust, fibers and other impurities, preventing dust and impurities from aggravating the wear of the balls and raceways, eliminating the noise hazard caused by ball movement instability, thereby comprehensively improving the noise reduction performance and operational stability of the bearing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the sealing and noise reduction structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the sound-absorbing ring and connecting end cap structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the cage structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the cage structure components of this utility model.

[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0025] 1. Outer shaft collar;

[0026] 101. Inner shaft;

[0027] 102. Ball bearings;

[0028] 2. Sealed and noise-reducing structure;

[0029] 201, Sound-absorbing ring; 2011, Threaded ring groove;

[0030] 202. Connecting end cap; 2021. Threaded protruding ring; 2022. Assembly groove; 2023. Threaded hole;

[0031] 203. Sealing ring; 2031. Assembly arc plate; 2032. Mounting hole;

[0032] 204. Fastening bolts;

[0033] 3. Cage structure;

[0034] 301, First cage; 3011, Ball groove; 3012, Connecting plate; 3013, Dating slot; 3014, Connecting outer hole;

[0035] 302. Second retainer; 3021. Insertion rib; 3022. Abutment bore;

[0036] 303. Connecting screws. Detailed Implementation

[0037] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0038] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:

[0039] This utility model provides a low-noise deep groove ball bearing for air conditioning fans, including: an outer shaft ring 1 and a sealing and noise reduction structure 2;

[0040] The outer ring 1 has an inner shaft 101 inside, and a ball bearing 102 is provided between the inner shaft 101 and the outer ring 1. The outer ring 1 and the inner shaft 101 are provided with a sealing and noise reduction structure 2. The sealing and noise reduction structure 2 includes the following components:

[0041] Sound-absorbing ring 201: It is attached to the outside of the outer shaft ring 1, and the two ends of the sound-absorbing ring 201 are provided with threaded ring grooves 2011;

[0042] Connecting end cap 202: Located at both ends of the sound-absorbing ring 201, the end of the connecting end cap 202 near the sound-absorbing ring 201 is provided with a threaded protrusion ring 2021, the threaded protrusion ring 2021 meshes with the threaded ring groove 2011, the connecting end cap 202 is provided with an assembly groove 2022, and the assembly groove 2022 is provided with a threaded hole 2023.

[0043] Sealing ring 203: It is located between the outer shaft ring 1 and the inner shaft 101. The outer side of the sealing ring 203 is fixedly connected to the mounting arc plate 2031. The mounting arc plate 2031 is provided with mounting holes 2032, which are aligned with the threaded holes 2023.

[0044] Fastening bolt 204 is fixedly installed in mounting hole 2032 and threaded hole 2023.

[0045] The inner wall of the sealing ring 203 is in close contact with the outer wall of the inner shaft 101.

[0046] The sound-absorbing ring 201 can efficiently absorb the mechanical vibration and noise energy generated during bearing operation, reducing the intensity of noise transmission. The connection end cover 202 and the sound-absorbing ring 201 can be fixedly connected by the cooperation of the threaded protruding ring 2021 and the threaded ring groove 2011. The mounting arc plate 2031 and the mounting groove 2022 are used for positioning, so that the sealing ring 203 can be installed on the connection end cover 202 by fastening bolts 204. At the same time, it can effectively block the intrusion of external dust, fibers and other impurities.

[0047] Example 2: Based on Example 1, wherein... Figure 4 and Figure 5 As shown, a retainer structure 3 is provided on the outer side of the ball 102. The retainer structure 3 includes a first retainer 301, a ball groove 3011 and a connecting plate 3012. The first retainer 301 is provided at one end of the outer side of the ball 102. The ball groove 3011 is provided on the first retainer 301. The connecting plate 3012 is fixedly connected between the first retainers 301.

[0048] The connecting plate 3012 has a through-type docking slot 3013, and the connecting plate 3012 has a connecting external hole 3014 at the docking slot 3013.

[0049] A second retainer 302 is provided on the opposite side of the first retainer 301. The two ends of the second retainer 302 are fixedly connected to insert protrusions 3021. The insert protrusions 3021 are provided with mating inner holes 3022, which are aligned with the connecting outer holes 3014.

[0050] A connecting screw 303 is installed in the mating inner hole 3022 and the connecting outer hole 3014.

[0051] When the ball 102 is worn, the corresponding connecting screw 303 can be turned with a tool to separate the second cage 302 from the first cage 301. Then the second cage 302 can be pulled out, and the ball 102 can be replaced. The new ball 102 is installed into the ball groove 3011, and then the unscrewed connecting screw 303 is tightened. There is no need to disassemble other cages or scatter other balls 102.

[0052] The specific usage and function of this embodiment are as follows:

[0053] In this invention, a sound-absorbing ring 201 is first attached to the outer side of the outer shaft ring 1, which can efficiently absorb the mechanical vibration and noise energy generated during bearing operation, reduce the noise propagation intensity, and effectively improve the noise problem during air conditioner fan operation. Then, the connecting end cover 202 and the sound-absorbing ring 201 are fixedly connected by the cooperation of the threaded protruding ring 2021 and the threaded ring groove 2011. Finally, the mounting arc plate 2031 and the mounting groove 2022 are used for positioning, so that the sealing ring 203 can be installed on the connecting end cover 202 by the fastening bolt 204. This can effectively block the intrusion of external dust, fibers and other impurities, avoid dust and impurities from aggravating the wear of the balls and raceways, eliminate the noise hazards caused by ball movement instability, and thus comprehensively improve the noise reduction performance and operational stability of the bearing.

Claims

1. Low-noise deep groove ball bearings for air conditioning fans, including: Outer shaft ring (1) and sealing and noise reduction structure (2); The outer ring (1) is provided with an inner shaft (101) inside, and a ball bearing (102) is provided between the inner shaft (101) and the outer ring (1). A sealing and noise reduction structure (2) is provided on the outer side of the outer ring (1) and the inner shaft (101). The sealing and noise reduction structure (2) is characterized in that it includes the following components: Sound-absorbing ring (201): It is pasted on the outside of the outer shaft ring (1), and the two ends of the sound-absorbing ring (2011) are provided with threaded ring grooves (2011). Connecting end cap (202): Located at both ends of the sound-absorbing ring (201), the connecting end cap (202) near the sound-absorbing ring (201) is provided with a threaded protrusion ring (2021), the threaded protrusion ring (2021) meshes with the threaded ring groove (2011), the connecting end cap (202) is provided with an assembly groove (2022), and the assembly groove (2022) is provided with a threaded hole (2023); Sealing ring (203): It is located between the outer shaft ring (1) and the inner shaft (101). The outer side of the sealing ring (203) is fixedly connected to the mounting arc plate (2031). The mounting arc plate (2031) has a mounting hole (2032) which is aligned with the threaded hole (2023). Fastening bolts (204) are fixedly installed in mounting holes (2032) and threaded holes (2023).

2. The low-noise deep groove ball bearing for air conditioning fans as described in claim 1, characterized in that: The inner wall of the sealing ring (203) is in close contact with the outer wall of the inner shaft (101).

3. The low-noise deep groove ball bearing for air conditioning fans as described in claim 1, characterized in that: The outer side of the ball (102) is provided with a retainer structure (3). The retainer structure (3) includes a first retainer (301), a ball groove (3011) and a connecting plate (3012). The outer side of the ball (102) is provided with a first retainer (301). The ball groove (3011) is opened on the first retainer (301). The connecting plate (3012) is fixedly connected between the first retainers (301).

4. The low-noise deep groove ball bearing for air conditioning fans as described in claim 3, characterized in that: The connecting plate (3012) is provided with a through-type docking slot (3013), and the connecting plate (3012) is provided with a connecting external hole (3014) at the docking slot (3013).

5. The low-noise deep groove ball bearing for air conditioning fans as described in claim 3, characterized in that: A second retainer (302) is provided on the opposite side of the first retainer (301). The two ends of the second retainer (302) are fixedly connected with insert protrusions (3021). The insert protrusions (3021) are provided with mating inner holes (3022), which are aligned with the connecting outer holes (3014).

6. The low-noise deep groove ball bearing for air conditioning fans as described in claim 5, characterized in that: A connecting screw (303) is installed in the mating inner hole (3022) and the connecting outer hole (3014).

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