Double-row angular contact ball bearing

Abstract

The utility model discloses a double-row angular contact ball bearing which comprises an inner ring, an outer ring and a rolling body, the outer ring is sleeved on the outer side of the inner ring, a rolling space is reserved between the inner ring and the outer ring, baffle pieces are arranged at two ends of the rolling space, and the baffle pieces are used for preventing lubricant from flowing out, so that the retention time of the lubricant between the inner ring and the outer ring is long enough. And the situation that due to the fact that the lubricant runs too fast, a user cannot inject the lubricant in time, and noise is generated during bearing operation is avoided.

Description

Technical Field

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

[0002] Bearings are an indispensable part of mechanical equipment. With the continuous advancement of science and technology and continuous improvement of processes, bearings provide more stable and efficient support for various applications. Lubricants are injected into bearings to ensure the normal operation of bearings and extend their practical life. In the prior art, lubricants are mainly injected between the inner and outer rings of bearings. However, since lubricants will flow out from the openings at the ends of the inner and outer rings, the bearings will make noises when used after the lubricants dry up, which will affect the equipment on which the bearings are installed. Therefore, the utility model proposes a double-row angular contact ball bearing. Utility Model Content

[0003] The utility model aims to solve the above technical problems existing in the prior art and provide a double-row angular contact ball bearing to ensure the retention time of lubricant in the rolling space and avoid affecting the use of the bearing.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The double-row angular contact ball bearing comprises an inner ring, an outer ring and rolling elements. The outer ring is sleeved on the outer side of the inner ring. A rolling space is left between the inner ring and the outer ring. Baffles are provided at both ends of the rolling space to prevent the outflow of lubricant.

[0006] Furthermore, the baffle member adopts a combination of a sealing ring and a dust cover.

[0007] Furthermore, the inner ring is provided with a first slideway and a first oil storage tank. The first slideway is used for the rotation of the rolling body. The first slideway is connected to the first oil storage tank. The first oil storage tank is used to store excess lubricating oil in the first slideway.

[0008] Furthermore, a first guide member is provided between the first slideway and the first oil storage tank, and the first guide member is used to guide excess lubricant in the first slideway into the first oil storage tank.

[0009] Furthermore, a cage is provided in the rolling space, the cage is used to limit the rolling body, a gap is formed between the cages, and an injection port is provided on the outer ring, the injection port is connected to the gap, so that the injected lubricating oil flows from the gap to the cages on both sides.

[0010] Furthermore, the gap is connected to the first oil storage tank, so that the lubricant in the gap is stored in the first oil storage tank.

[0011] Furthermore, a second slideway is provided on the inner wall of the outer ring, a connecting port is provided on the second slideway, a second oil storage tank is provided on the outer ring, the connecting port is connected to the second oil storage tank, a sponge is provided in the second oil storage tank, the sponge is used to absorb lubricant, the sponge extends into the second slideway through the connecting port, and when the rolling body passes through the sponge, the rolling body squeezes the sponge so that the rolling body is lubricated.

[0012] Furthermore, the retaining frame is provided with a limiting groove, and a clamp is provided in the limiting groove, and the clamp is used to fix the retaining frame on the inner ring.

[0013] Furthermore, the retaining frame is provided with a second guide member, and the second guide member is used to guide the lubricant in the limiting groove into the first oil storage groove.

[0014] Furthermore, disassembly parts are provided between adjacent inner rings.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0016] The utility model comprises an inner ring, an outer ring and a rolling body. The outer ring is sleeved on the outer side of the inner ring. A rolling space is reserved between the inner ring and the outer ring. Baffle members are arranged at both ends of the rolling space. The baffle members are used to prevent the outflow of lubricant and ensure that the lubricant is retained between the inner ring and the outer ring for a sufficiently long time, so as to avoid the situation that the bearing makes noise during operation due to the user's inability to inject lubricant in time due to the lubricant losing too quickly.

[0017] Furthermore, the baffle member adopts a dual combination of a sealing ring and a dust cover, which can prevent the lubricant from flowing out of the rolling space and also prevent external impurities from entering the rolling space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the internal structure of the first embodiment of the present utility model;

[0020] Figure 2 is a top view of the inner ring in the first embodiment;

[0021] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0022] Figure 4 This is a schematic diagram of the internal structure of the second embodiment of the utility model;

[0023] Figure 5 is a top view of the outer ring in the second embodiment;

[0024] Figure 6 for Figure 5 Cross-sectional view at BB in the middle.

[0025] In the figure, 1-dust cover; 2-sealing ring; 3-baffle member; 4-rolling body; 5-retaining frame; 6-outer ring; 7-inner ring; 8-first oil storage tank; 9-first slideway; 10-first guide member; 11-second oil storage tank; 12-connecting port; 13-injection port; 14-disassembly and assembly member; 15-sponge; 16-limiting groove; 17-second slideway; 18-second guide member. DETAILED DESCRIPTION

[0026] like Figures 1 to 3 As shown, it is the first embodiment of the utility model.

[0027] The double-row angular contact ball bearing comprises an inner ring 7, an outer ring 6 and a rolling element 4. The outer ring 6 is sleeved on the outer side of the inner ring 7. A rolling space is left between the inner ring 7 and the outer ring 6. The rolling space is provided with baffles 3 at both ends. The baffles 3 are a combination of a sealing ring 2 and a dust cover 1. The double-layer seal of the sealing ring 2 and the dust cover 1 can prevent the lubricant from flowing out of the rolling space and prevent external impurities from entering the rolling space.

[0028] The inner ring 7 is provided with a first slideway 9 and a first oil storage tank 8. The first slideway 9 is used for the rotation of the rolling body 4. A first guide member 10 is provided between the first slideway 9 and the first oil storage tank 8. The first guide member 10 adopts an inclined guide surface, and the guide surface is used to guide the excess lubricant in the first slideway 9 to the first oil storage tank 8, and store the excess lubricating oil in the first slideway 9 in the first oil storage tank 8.

[0029] A cage 5 is provided in the rolling space, and the cage 5 is used to limit the rolling body 4. A gap is formed between the cages 5. The outer ring 6 is provided with an injection port 13, and the injection port 13 is connected to the gap, so that the injected lubricating oil flows from the gap to the cages 5 on both sides, avoiding the situation that one row of rolling bodies 4 is lubricated but the other row of rolling bodies 4 is not lubricated. The gap is also connected to the first oil storage tank 8, so that the lubricant in the gap is stored in the first oil storage tank 8 to control the dosage of the lubricant in the first slideway 9.

[0030] The retainer 5 is provided with a limit groove 16, and a clamp is provided in the limit groove 16. The clamp can be a clamp ring, and the clamp ring is used to fix the retainer 5 on the inner ring 7. The retainer 5 is provided with a second guide member 18, and the second guide member 18 also uses a guide surface, and the guide surface is used to guide the lubricant in the limit groove 16 into the first oil storage tank 8.

[0031] Based on the first embodiment, Figures 4 to 6As shown, the inner wall of the outer ring 6 of the second embodiment of the utility model is provided with a second slide 17, the second slide 17 is provided with a connecting port 12, the outer ring 6 is provided with a second oil storage tank 11, the connecting port 12 is connected to the second oil storage tank 11, a sponge 15 is provided in the second oil storage tank 11, the sponge 15 is used to absorb lubricant, the sponge 15 extends into the second slide 17 through the connecting port 12, when the rolling body 4 passes through the sponge 15, the rolling body 4 squeezes the sponge 15, so that the rolling body 4 is lubricated.

[0032] Disassembly members 14 are provided between adjacent inner rings 7. The disassembly members 14 can be bolts. The utility model forms two inner rings 7 into a whole, thereby improving the stability of the inner rings 7.

[0033] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A double-row angular contact ball bearing, comprising an inner ring, an outer ring and rolling elements, wherein the outer ring is sleeved on the outer side of the inner ring, and a rolling space is left between the inner ring and the outer ring, characterized in that: The rolling space is provided with baffle members at both ends, and the baffle members are used to prevent the outflow of lubricant. The inner ring is provided with a first slideway and a first oil storage tank. The first slideway is used for the rotation of the rolling body. The first slideway is connected to the first oil storage tank, and the first oil storage tank is used to store excess lubricating oil in the first slideway.

2. The double row angular contact ball bearing according to claim 1, characterized in that: The baffle member is a combination of a sealing ring and a dust cover.

3. The double row angular contact ball bearing according to claim 1, characterized in that: A first guide member is provided between the first slideway and the first oil storage tank, and the first guide member is used to guide excess lubricant in the first slideway into the first oil storage tank.

4. The double row angular contact ball bearing according to claim 1, characterized in that: A retaining frame is provided in the rolling space, and the retaining frame is used to limit the rolling body. A gap is formed between the retaining frames. The outer ring is provided with an injection port, and the injection port is connected to the gap so that the injected lubricating oil flows from the gap to the retaining frames on both sides.

5. The double row angular contact ball bearing according to claim 4, characterized in that: The gap is connected to the first oil storage tank, so that the lubricant in the gap is stored in the first oil storage tank.

6. The double row angular contact ball bearing according to claim 4, characterized in that: The inner side wall of the outer ring is provided with a second slideway, the second slideway is provided with a connecting port, the outer ring is provided with a second oil storage tank, the connecting port is connected to the second oil storage tank, a sponge is provided in the second oil storage tank, the sponge is used to absorb the lubricant, the sponge extends into the second slideway through the connecting port, when the rolling body passes through the sponge, the rolling body squeezes the sponge so that the rolling body is lubricated.

7. The double row angular contact ball bearing according to claim 4, characterized in that: The retaining frame is provided with a limiting groove, a clamp is provided in the limiting groove, and the clamp is used to fix the retaining frame on the inner ring.

8. The double row angular contact ball bearing according to claim 7, characterized in that: The retaining frame is provided with a second guide member, and the second guide member is used to guide the lubricant in the limiting groove into the first oil storage groove.

9. The double row angular contact ball bearing according to claim 1, characterized in that: Disassembly and assembly parts are arranged between adjacent inner rings.

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