Bearing mechanism with noise reduction function for speed reducer

Abstract

The utility model discloses a speed reducer bearing mechanism with a noise reduction function, which comprises a protective shell, buffer mechanisms are arranged on two sides in the protective shell, an outer ring is arranged in the protective shell, an inner ring is arranged in the middle in the outer ring, a rotating shaft is arranged in the middle in the inner ring, and a bearing is arranged in the rotating shaft. And a material layer is arranged in the inner ring. Two groups of buffer mechanisms are arranged in the protective shell, when energy passes through the protective shell, the energy can be preliminarily reduced by sound absorption sponge in the protective shell, when a rubber block in an empty groove is pushed, the rubber block can extrude a spring through a movable disc, and at the moment, due to the counter-acting force of extrusion of the spring, the energy can be reduced again; and the energy is dispersed through a through groove in the movable disc and then is guided out, so that the noise reduction work of the bearing mechanism is fully carried out.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer bearing technology, specifically a speed reducer bearing mechanism with noise reduction function. Background Technology

[0002] The bearing mechanism in a speed reducer is a critical component, primarily responsible for supporting and bearing the load on the shaft, ensuring the stability and accuracy of the speed reducer's operation. It typically consists of rolling or sliding bearings, used to reduce friction, improve transmission efficiency, and extend the equipment's service life. Speed ​​reducer bearings also need to withstand significant radial and axial loads, especially under high-speed and high-torque conditions; therefore, selecting the appropriate bearing type and material is crucial for the speed reducer's performance.

[0003] A bearing mechanism for a speed reducer with noise reduction function is disclosed in Chinese Patent Publication No. CN213684956U. By setting up an elastic block, a movable rod, a support block and a buffer spring, when the roller moves longitudinally, the roller touches the elastic block to perform primary buffering, and then the buffer spring is compressed by squeezing the movable rod to perform secondary buffering, thereby buffering the longitudinal movement of the roller and achieving the effect of noise reduction. However, the overall functionality of the bearing mechanism is low, and the noise energy generated inside cannot be fully and effectively eliminated, thus affecting the stability and efficiency of the bearing mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a bearing mechanism for a speed reducer with noise reduction function, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing mechanism for a speed reducer with noise reduction function, including a protective shell, buffer mechanisms provided on both sides inside the protective shell, an outer ring provided inside the protective shell, an inner ring provided in the middle position inside the outer ring, a rotating shaft installed in the middle position inside the inner ring, and a material layer provided inside the inner ring.

[0006] Preferably, the buffer mechanism includes slots on both sides inside the protective shell, a rubber block is slidably connected to one side of the slot, and a movable disc is fixedly connected to one side of the rubber block.

[0007] Preferably, the movable disc has a through groove inside, and springs are fixedly connected to both ends of one side of the movable disc.

[0008] Preferably, the outer side of the inner ring is provided with a sliding groove, and a ball bearing is slidably connected to the outer side of the sliding groove.

[0009] Preferably, the material layer includes a strength layer disposed inside the outer ring, a protective layer disposed inside the strength layer, and a corrosion-resistant layer disposed outside the strength layer.

[0010] Preferably, the strength layer is made of steel, the protective layer is made of a composite material of silicon nitride and titanium nitride coatings, and the corrosion-resistant layer is made of high-strength stainless steel.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This type of bearing mechanism for a speed reducer with noise reduction function has two sets of buffer mechanisms inside the protective shell. When energy passes through the protective shell, it can be initially reduced by the sound-absorbing sponge inside the protective shell. When the rubber block in the slot is pushed, the rubber block can squeeze the spring through the movable disc. At this time, due to the reaction force of the spring being squeezed, it can be reduced again. The energy is then dispersed and discharged through the through groove on the movable disc, thereby fully performing the noise reduction work of the bearing mechanism.

[0013] 2. This type of bearing mechanism for a speed reducer with noise reduction function has a strength layer, a protective layer, and a corrosion-resistant layer inside the bearing. The strength layer increases the overall strength of the bearing structure, while the protective layer inside the strength layer has excellent hardness, wear resistance, and corrosion resistance, effectively reducing the friction coefficient with the balls and reducing noise generation. The corrosion-resistant layer outside the strength layer provides good corrosion resistance and strength, thereby not only improving the bearing performance and extending its service life, but also significantly improving the stability and reliability of the bearing under different working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the protective shell of this utility model;

[0016] Figure 3 This is a front view structural diagram of the outer ring of this utility model;

[0017] Figure 4 This is a cross-sectional view of the outer ring of this utility model.

[0018] In the diagram: 1. Protective shell; 2. Buffer mechanism; 201. Empty groove; 202. Rubber block; 203. Movable disc; 204. Through groove; 205. Spring; 3. Outer ring; 4. Inner ring; 401. Slide groove; 5. Rotating shaft; 6. Ball bearing; 7. Material layer; 701. Strength layer; 702. Protective layer; 703. Corrosion resistant layer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides two technical solutions:

[0021] Example 1: A bearing mechanism for a speed reducer with noise reduction function includes a protective shell 1, buffer mechanisms 2 on both sides inside the protective shell 1, an outer ring 3 inside the protective shell 1, an inner ring 4 in the middle of the inner ring 3, a rotating shaft 5 installed in the middle of the inner ring 4, a material layer 7 inside the inner ring 4, and sound-insulating sponge on the contact surface between the protective shell 1 and the outer ring 3, which can play a preliminary role in sound insulation and noise reduction.

[0022] The buffer mechanism 2 includes empty slots 201 on both sides inside the protective shell 1. A rubber block 202 is slidably connected to one side of the empty slot 201. A movable disk 203 is fixedly connected to one side of the rubber block 202. A through slot 204 is provided inside the movable disk 203. Springs 205 are fixedly connected to both ends of one side of the movable disk 203. When the noise energy generated by the bearing operation passes through the buffer mechanism 2, it can push the rubber block 202 to move. At this time, the rubber block 202 can squeeze the spring 205 through the movable disk 203. At the same time, the rubber block 202 can remove the blockage of the empty slot 201 and allow the reduced noise to be discharged through the through slot 204 on the movable disk 203.

[0023] The inner ring 4 is provided with a groove 401 on the outside, and a ball 6 is slidably connected to the outside of the groove 401. Both the groove 401 and the ball 6 are provided with two rows, which can reduce the pressure of a single rolling element, distribute the load evenly, and thus reduce the generation of noise. At the same time, the groove 401 is made of ceramic material, which can reduce the noise generated by the material itself during operation.

[0024] Example 2 differs from Example 1 mainly in that:

[0025] A bearing mechanism for a speed reducer with noise reduction function includes a strength layer 701 disposed inside the outer ring 3 in the material layer 7, a protective layer 702 disposed inside the strength layer 701, and a corrosion-resistant layer 703 disposed outside the strength layer 701. The outer ring 3 and the inner ring 4 are made of the same material and are both provided with a strength layer 701, a protective layer 702, and a corrosion-resistant layer 703.

[0026] The strength layer 701 is made of steel structure material, which has high strength, good wear resistance and excellent processing performance, so it can withstand a large load.

[0027] The protective layer 702 is made of a composite material of silicon nitride and titanium nitride coating. Silicon nitride has very good hardness, wear resistance and corrosion resistance, and can work for a long time in high-speed, high-temperature and chemically corrosive environments. At the same time, it can effectively reduce friction, improve wear resistance and reduce weight. The titanium nitride coating has excellent wear resistance, corrosion resistance and high thermal stability, reduces the coefficient of friction, and reduces energy consumption and noise.

[0028] The corrosion-resistant layer 703 is made of high-strength stainless steel, providing good corrosion resistance and strength. Meanwhile, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] In this embodiment of the application, the bearing body is installed inside the protective shell 1. When the bearing generates noise during operation, the noise energy can be initially reduced by the sound-insulating sponge inside the protective shell 1. When the noise energy passes through the buffer mechanism 2, it can push the rubber block 202 in the slot 201. At this time, the rubber block 202 can squeeze the spring 205 through the movable disc 203, thereby consuming some energy. The consumed noise energy can be discharged through the through slot 204 on the movable disc 203. At the same time, two rows of balls 6 are provided inside the bearing to reduce the pressure of a single rolling element and distribute the load evenly, thereby reducing the generation of noise.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing mechanism for a speed reducer with noise reduction function, comprising a protective housing (1), characterized in that: The protective shell (1) has a buffer mechanism (2) on both sides inside. The protective shell (1) has an outer ring (3) inside. The outer ring (3) has an inner ring (4) in the middle position inside. The inner ring (4) has a rotating shaft (5) in the middle position inside. The inner ring (4) has a material layer (7) inside.

2. The bearing mechanism for a speed reducer with noise reduction function according to claim 1, characterized in that: The buffer mechanism (2) includes a hollow groove (201) provided on both sides inside the protective shell (1). A rubber block (202) is slidably connected to one side inside the hollow groove (201), and a movable disk (203) is fixedly connected to one side of the rubber block (202).

3. A bearing mechanism for a speed reducer with noise reduction function according to claim 2, characterized in that: The movable disc (203) has a through groove (204) inside, and springs (205) are fixedly connected to both ends of one side of the movable disc (203).

4. The bearing mechanism for a speed reducer with noise reduction function according to claim 1, characterized in that: The inner ring (4) is provided with a groove (401) on the outside, and a ball (6) is slidably connected to the outside of the groove (401).

5. A bearing mechanism for a speed reducer with noise reduction function according to claim 2, characterized in that: The material layer (7) includes a strength layer (701) disposed inside the outer ring (3), a protective layer (702) disposed inside the strength layer (701), and a corrosion-resistant layer (703) disposed outside the strength layer (701).

6. A bearing mechanism for a speed reducer with noise reduction function according to claim 5, characterized in that: The strength layer (701) is made of steel, the protective layer (702) is made of a composite material of silicon nitride and titanium nitride coating, and the corrosion-resistant layer (703) is made of high-strength stainless steel.

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