A type of anti-slip double-row tapered roller bearing

Abstract

This utility model discloses an anti-slip double-row tapered roller bearing, comprising an outer ring and an inner ring. The outer ring has an internal groove, and a hard alloy layer is laid on the inner surface of the internal groove. A transition layer is laid on the outer surface of the hard alloy layer, and a soft magnetic alloy layer is laid on the outward side of the internal groove. A permanent magnet array is laid on the outer surface of the inner ring, and a cage is laid on the permanent magnet array. A cage pocket is formed on the outer surface of the cage, and a groove is formed inside the cage pocket. This device uses magnetic attraction technology to reinforce the rollers, ensuring that the rollers are tightly fitted with the raceway during high-speed operation, effectively preventing slippage and improving the stability and service life of the bearing.

Description

Technical Field

[0001] This utility model relates to the field of tapered roller bearing technology, and in particular to an anti-slip double-row tapered roller bearing. Background Technology

[0002] Double-row tapered roller bearings are separable bearings. Their basic structure consists of an inner ring, an outer ring, two rows of tapered rollers, and a cage assembly. The outer ring is separable, while the inner ring, rollers, and cage assembly are typically assembled as a single unit. This structural design gives the bearing unique performance characteristics; both the inner and outer ring raceways are tapered, the rollers are also tapered, and there is line contact between the large end of the roller and the large flange of the inner ring. This line contact method allows the bearing to withstand larger loads.

[0003] A search revealed Chinese Patent Publication No. CN113503314A, which discloses an anti-slip double-row tapered roller bearing, relating to the field of bearings. The bearing includes an outer ring, an inner ring embedded within the outer ring, a washer in the middle of the inner ring, and two rows of cages positioned between the outer and inner rings, forming a double-row raceway. One side of the housing has an end face housing with a groove. The outer ring is interference-fitted with the housing. The side of the outer ring closest to the end face housing protrudes away from the inner ring, forming a perforated flange. This perforated flange is embedded in the groove. The perforated flange has several flange holes. A through hole is formed on the end face housing at a position corresponding to the flange holes. A pin is inserted into the through hole and the flange hole to fix the perforated flange to the end face housing. The beneficial effects of this invention are: even if the interference between the outer ring and the housing disappears, the outer ring will not slide relative to the housing in the circumferential direction, effectively avoiding the harm caused by the creep of the outer ring of the double-row tapered rolling bearing with outer ring flange; however, the device still has the risk of roller slippage under complex working conditions, and fails to completely solve the stability problem at high speed, affecting the overall performance of the bearing. Utility Model Content

[0004] The purpose of this invention is to provide an anti-slip double-row tapered roller bearing, which solves the problem that ordinary structures in the prior art cannot completely prevent roller slippage and ensure the stability of the bearing during high-speed operation.

[0005] To achieve the above objectives, a non-slip double-row tapered roller bearing is provided, comprising: an outer ring and an inner ring, wherein an internal groove is formed inside the outer ring, a hard alloy layer is laid on the inner surface of the internal groove, a transition layer is laid on the outer surface of the hard alloy layer, and a soft magnetic alloy layer is laid on the outward side of the internal groove.

[0006] A permanent magnet array is laid on the outer surface of the inner ring, a retainer is laid on the permanent magnet array, a retainer pocket is opened on the outer surface of the retainer, and a groove is opened inside the retainer pocket.

[0007] According to the aforementioned anti-slip double-row tapered roller bearing, heat dissipation holes are provided on both sides of the outer ring, and an oil injection hole is provided on the top of the outer ring.

[0008] According to the aforementioned anti-slip double-row tapered roller bearing, rollers are disposed within the cage pocket.

[0009] According to the aforementioned anti-slip double-row tapered roller bearing, the roller includes a roller shaft and a connecting member, wherein the roller shaft is rotatably connected within the connecting member.

[0010] According to the aforementioned anti-slip double-row tapered roller bearing, the transition layer is made of a nickel-chromium alloy.

[0011] The above-mentioned solution has the following beneficial effects:

[0012] The device uses magnetic attraction technology to reinforce the rollers, ensuring that the rollers fit tightly against the raceway when running at high speed, effectively preventing slippage and improving the stability and service life of the bearings.

[0013] The device employs heat dissipation holes to optimize its structure, accelerate heat dissipation, reduce temperature rise, and further ensure the stable operation of the bearing in high-temperature environments.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the internal structure of an anti-slip double-row tapered roller bearing according to this utility model;

[0017] Figure 2 This is a schematic diagram of the outer structure of an anti-slip double-row tapered roller bearing according to this utility model;

[0018] Figure 3 This is a schematic diagram of the roller structure of an anti-slip double-row tapered roller bearing according to this utility model;

[0019] Figure 4 This is a schematic diagram of the inner ring structure of an anti-slip double-row tapered roller bearing according to this utility model.

[0020] Legend:

[0021] 1. Outer ring; 101. Heat dissipation hole; 102. Hard alloy layer; 103. Soft magnetic alloy layer; 104. Transition layer; 105. Internal groove; 2. Roller; 201. Roller shaft; 202. Connector; 3. Inner ring; 301. Permanent magnet array; 302. Cage; 303. Cage pocket; 304. Groove; 4. Oil injection hole. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model discloses an anti-slip double-row tapered roller bearing, comprising: an outer ring 1 and an inner ring 3. The outer ring 1 has an internal groove 105, which is filled with other materials. The inner surface of the internal groove 105 is covered with a hard alloy layer 102, which can strengthen the inner ring 3 and improve the compressive strength of the overall structure. The outer surface of the hard alloy layer 102 is covered with a transition layer 104, which is used to buffer the hard alloy layer 102. The outer side of the internal groove 105 is covered with a soft magnetic alloy layer 103, which can enhance the magnetic attraction effect, ensure that the rollers are tightly fitted to the inner ring, and further optimize the anti-slip performance of the bearing.

[0024] A permanent magnet array 301 is laid on the outer surface of the inner ring 3. The permanent magnet array 301 can generate a stable magnetic field to ensure that the roller 2 remains evenly distributed when running at high speed. A cage 302 is laid on the permanent magnet array 301. A cage pocket 303 is opened on the outer surface of the cage 302. The cage pocket 303 can accommodate the roller 2 and ensure its stable operation. A groove 304 is opened inside the cage pocket 303. The groove 304 is used to accommodate lubricating oil, reduce friction, and improve the service life of the bearing.

[0025] The outer ring 1 has heat dissipation holes 101 on both sides and an oil injection hole 4 on the top of the outer ring 1. The heat dissipation holes 101 can effectively dissipate heat, reduce the bearing temperature, and prevent performance degradation caused by overheating. The top oil injection hole 4 can conveniently inject lubricating oil periodically to maintain internal lubrication of the bearing, further improve running stability and extend service life.

[0026] A roller 2 is provided inside the cage pocket 303. The roller 2 can rotate stably inside the cage pocket 303, reducing vibration and noise. The roller shaft 201 of the roller 2 is tightly fitted with the connecting piece 202 to ensure the efficient operation of the overall structure.

[0027] Roller 2 includes roller 201 and connector 202. Roller 201 is rotatably connected inside connector 202. Roller 201 is coated with a wear-resistant coating to effectively reduce wear and extend service life.

[0028] The transition layer 104 is made of nickel-chromium alloy, which has good corrosion resistance and high temperature stability, ensuring that it maintains excellent performance in complex environments and further improving the overall durability and reliability of the bearing.

[0029] Working principle: The anti-slip double-row tapered roller bearing of this device achieves efficient and stable operation through magnetic synergy: the permanent magnet array 301 embedded in the cage 302 forms a closed magnetic circuit with the inner ring 3 flange and the soft magnetic alloy layer 103, generating axial attraction force on the rollers, forcing the rollers 2 to fit tightly against the raceway. The heat dissipation holes 101 on the outer ring 1 work together with the grease to control the temperature rise at a suitable temperature. The transition layer 104 buffers thermal stress through a three-layer structure. The split roller design can cause the rollers to deflect under impact loads, achieving zero slip failure under high-speed and heavy-load conditions.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A non-slip double-row tapered roller bearing, comprising: The outer ring (1) and the inner ring (3) are characterized in that the outer ring (1) has an internal groove (105) inside, the inner surface of the internal groove (105) is covered with a hard alloy layer (102), the outer surface of the hard alloy layer (102) is covered with a transition layer (104), and the outer side of the internal groove (105) is covered with a soft magnetic alloy layer (103). A permanent magnet array (301) is laid on the outer surface of the inner ring (3), and a retainer (302) is laid on the permanent magnet array (301). A retainer pocket (303) is opened on the outer surface of the retainer (302), and a groove (304) is opened inside the retainer pocket (303).

2. The anti-slip double-row tapered roller bearing according to claim 1, characterized in that, The outer ring (1) has heat dissipation holes (101) on both sides and an oil injection hole (4) on the top of the outer ring (1).

3. The anti-slip double-row tapered roller bearing according to claim 1, characterized in that, A roller (2) is provided inside the retainer pocket (303).

4. The anti-slip double-row tapered roller bearing according to claim 3, characterized in that, The roller (2) includes a roller (201) and a connector (202), wherein the roller (201) is rotatably connected inside the connector (202).

5. The anti-slip double-row tapered roller bearing according to claim 1, characterized in that, The transition layer (104) is made of nickel-chromium alloy.

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