Sealing self-aligning roller bearing

Abstract

The invention discloses a sealing self-aligning roller bearing and relates to the technical field of bearings. In order to solve the problems that when a traditional open type self-aligning roller bearing is used in severe environments such as dust and slurry, as external impurities easily intrude into the bearing, the abrasion of the bearing is aggravated, the lubrication is invalid, the service life is relatively short, and the vibration resistance of the traditional bearing is relatively poor. Sealing rings are arranged between the outer edges of the inner walls of outer blocking pieces and the edge of the outer surface of an inner ring, the sealing rings are in interference fit with the inner ring, an annular groove is machined in the end face of one side of each outer blocking piece along the edge of a center hole, and one end of each sealing ring is embedded into the annular groove in the end face of the corresponding outer blocking piece. Therefore, a closed space is formed between the inner wall of the outer ring and the outer surface of the inner ring, impurities such as dust, sand and metal chips are effectively prevented from entering the bearing very easily, bearing abrasion aggravation and lubrication failure are avoided, and the service life of the bearing is prolonged. The invention is suitable for the technical field of self-aligning roller bearings.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, and in particular to a sealed spherical roller bearing. Background Art

[0002] With the continuous development of modern industry, mechanical equipment is increasingly developing towards high precision, high speed, high load, long life and reliable operation under harsh working conditions. This puts higher requirements on the performance of spherical roller bearings. Not only do they need to have good aligning performance and load-bearing capacity, but they also need to have excellent sealing performance and vibration resistance to adapt to complex and changeable working environments, such as vibrating screens, crushers, rolling mills and other equipment in the fields of mining machinery, metallurgical equipment, and engineering machinery. Under these high dust, heavy load, and strong vibration conditions, traditional spherical roller bearings are difficult to meet the needs of long-term stable operation.

[0003] When traditional open spherical roller bearings are used in harsh environments such as dust and mud, external impurities can easily invade the interior of the bearings, causing increased bearing wear and lubrication failure, thereby shortening the service life. Ordinary seals are prone to falling off under high-vibration conditions. Summary of the invention

[0004] The present invention proposes a sealed spherical roller bearing to solve the problem that when a traditional open spherical roller bearing is used in a harsh environment such as dust and mud, external impurities can easily invade the interior of the bearing, resulting in increased bearing wear and lubrication failure, thus leading to a short service life, and the traditional bearing has poor vibration resistance.

[0005] A sealed spherical roller bearing of the present invention comprises an outer ring 1, an outer baffle 2, a roller 3, a sealing ring 4, a retaining frame 5 and an inner ring 6;

[0006] The outer surface of the inner ring 6 is sleeved with an outer ring 1, a retainer 5 is arranged between the inner wall of the outer ring 1 and the outer surface of the inner ring 6, and the inner wall of the outer ring 1 and the outer surface of the inner ring 6 are respectively processed with grooves with a circular arc cross section along the circumferential direction, and the two ends of the outer surface of the retainer 5 are respectively processed with a plurality of pockets evenly along the circumferential direction, and a roller 3 is arranged inside each pocket, and an outer baffle 2 is respectively arranged on both sides of the outer ring 1, and two threaded holes 1-1 are respectively processed evenly along the circumferential direction on the end surfaces of both sides of the outer ring 1, and the outer baffle 2 is fixedly connected to the outer ring 1 by fixing bolts 2-1, and a sealing ring 4 is arranged between the outer edge of the inner wall of each outer baffle 2 and the edge of the outer surface of the inner ring 6;

[0007] Furthermore, both ends of the outer surface of the inner ring 6 are respectively processed with a guide bevel along the circumferential direction;

[0008] Furthermore, the sealing ring 4 and the inner ring 6 are interference fit;

[0009] Furthermore, a plurality of oil injection holes are evenly processed in the middle of the outer surface of the outer ring 1 along the circumferential direction;

[0010] Furthermore, one end surface of the outer baffle 2 is processed with an annular groove along the edge of the center hole;

[0011] Furthermore, one end of the sealing ring 4 is embedded in the annular groove on the end surface of the outer baffle 2;

[0012] Furthermore, sealed spherical roller bearings can work reliably in wet, dusty and corrosive environments. For example, in port machinery, the equipment must withstand the corrosion of seawater and salt spray, and the sealing structure can prevent seawater and salt spray from entering the bearing; in mining machinery, facing a large amount of dust and ore impact, sealed bearings can maintain their stable performance and ensure the normal operation of the equipment.

[0013] Since sealed spherical roller bearings can effectively protect themselves in harsh environments, reducing bearing failures caused by impurity intrusion and lubricant problems, the maintenance frequency of equipment can be greatly reduced. In some large equipment, such as paper machines, fans, mining machinery, etc., bearing maintenance often requires downtime, which will lead to production interruptions and huge economic losses. Using sealed spherical roller bearings can reduce unnecessary downtime maintenance and improve the operating efficiency of equipment.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention overcomes the shortcomings of the prior art. A sealing ring is provided between the outer edge of the inner wall of the outer baffle and the outer surface edge of the inner ring. The sealing ring is interference fit with the inner ring. An annular groove is processed on one end face of each outer baffle along the edge of the center hole. One end of the sealing ring is embedded in the annular groove on the end face of the outer baffle, thereby forming a closed space between the inner wall of the outer ring and the outer surface of the inner ring, effectively preventing impurities such as dust, sand, and metal chips from easily entering the interior of the bearing, thereby avoiding aggravated bearing wear and lubrication failure, and extending the service life of the bearing.

[0016] 2. The present invention overcomes the shortcomings of the prior art. An outer baffle is provided on each side of the outer ring, and two threaded holes are evenly processed on the end faces of both sides of the outer ring along the circumferential direction. The outer baffle is fixedly connected to the outer ring by fixing bolts, which increases the stability of the sealing structure and prevents vibration from falling off, thereby effectively improving the seismic resistance of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a main cross-sectional view of a sealed spherical roller bearing according to the present invention;

[0018] Figure 2 yes Figure 1 A partially enlarged schematic diagram of part I of a sealed spherical roller bearing according to the present invention;

[0019] Figure 3 yes Figure 1 A partially enlarged schematic diagram of part II of a sealed spherical roller bearing described in the present invention. DETAILED DESCRIPTION

[0020] Specific implementation method 1: Combination Figures 1 to 3 The present embodiment is described. The sealed spherical roller bearing described in the present embodiment comprises an outer ring 1, an outer baffle 2, a roller 3, a sealing ring 4, a retaining frame 5 and an inner ring 6;

[0021] The outer surface of the inner ring 6 is sleeved with an outer ring 1, a retainer 5 is arranged between the inner wall of the outer ring 1 and the outer surface of the inner ring 6, and the inner wall of the outer ring 1 and the outer surface of the inner ring 6 are respectively processed with grooves with a circular arc cross section along the circumferential direction, and the two ends of the outer surface of the retainer 5 are respectively processed with a plurality of pockets evenly along the circumferential direction, and a roller 3 is arranged inside each pocket, and an outer baffle 2 is respectively arranged on both sides of the outer ring 1, and two threaded holes 1-1 are respectively processed evenly along the circumferential direction on the end surfaces of both sides of the outer ring 1, and the outer baffle 2 is fixedly connected to the outer ring 1 by fixing bolts 2-1, and a sealing ring 4 is arranged between the outer edge of the inner wall of each outer baffle 2 and the edge of the outer surface of the inner ring 6;

[0022] In this specific implementation, an outer baffle is provided on each side of the outer ring, and two threaded holes are evenly processed on the end faces of both sides of the outer ring along the circumferential direction, and the outer baffle is fixedly connected to the outer ring by fixing bolts, which increases the stability of the sealing structure and prevents vibration from falling off, thereby effectively improving the seismic resistance of the bearing.

[0023] Specific implementation method 2: Combination Figures 1 to 3 The present embodiment is described as a further limitation of the spherical roller bearing described in the first embodiment. In the sealed spherical roller bearing described in the present embodiment, both ends of the outer surface of the inner ring 6 are processed with a guide bevel along the circumferential direction.

[0024] Specific implementation method three: Combination Figures 1 to 3 This embodiment is described. This embodiment is a further limitation on the spherical roller bearing described in the first embodiment. In the sealed spherical roller bearing described in this embodiment, the sealing ring 4 and the inner ring 6 are interference fit.

[0025] Specific implementation method four: Combination Figures 1 to 3The present embodiment is described as a further limitation of the spherical roller bearing described in the first embodiment. In the sealed spherical roller bearing described in the present embodiment, a plurality of oil injection holes are evenly processed in the middle of the outer surface of the outer ring 1 along the circumferential direction.

[0026] Specific implementation method five: Combination Figures 1 to 3 The present embodiment is described as a further limitation of the spherical roller bearing described in the first embodiment. In the sealed spherical roller bearing described in the present embodiment, an annular groove is machined on one end face of the outer baffle 2 along the edge of the center hole.

[0027] Specific implementation method six: Combination Figures 1 to 3 This embodiment is described. This embodiment is a further limitation of the spherical roller bearing described in the specific embodiment 5. In the sealed spherical roller bearing described in this embodiment, one end of the sealing ring 4 is embedded in the annular groove on the end surface of the outer baffle 2.

[0028] In this specific implementation manner, a sealing ring is provided between the outer edge of the inner wall of the outer baffle and the outer surface edge of the inner ring. The sealing ring is interference fit with the inner ring. An annular groove is processed on one end face of each outer baffle along the edge of the center hole. One end of the sealing ring is embedded in the annular groove on the end face of the outer baffle, thereby forming a closed space between the inner wall of the outer ring and the outer surface of the inner ring, effectively preventing impurities such as dust, sand, and metal chips from easily entering the interior of the bearing, thereby avoiding aggravated bearing wear and lubrication failure, and extending the service life of the bearing.

[0029] How it works

[0030] Sealed spherical roller bearings can work reliably in wet, dusty and corrosive environments. For example, in port machinery, the equipment must withstand the corrosion of seawater and salt spray, and the sealing structure can prevent seawater and salt spray from entering the bearing; in mining machinery, facing a large amount of dust and ore impact, sealed bearings can maintain their stable performance and ensure the normal operation of the equipment.

[0031] Since sealed spherical roller bearings can effectively protect themselves in harsh environments, reducing bearing failures caused by impurity intrusion and lubricant problems, the maintenance frequency of equipment can be greatly reduced. In some large equipment, such as paper machines, fans, mining machinery, etc., bearing maintenance often requires downtime, which will lead to production interruptions and huge economic losses. Using sealed spherical roller bearings can reduce unnecessary downtime maintenance and improve the operating efficiency of equipment.

Claims

1. A sealed spherical roller bearing, characterized in that: It comprises an outer ring (1), an outer baffle (2), a roller (3), a sealing ring (4), a retaining frame (5) and an inner ring (6); An outer ring (1) is sleeved on the outer surface of the inner ring (6), a retainer (5) is arranged between the inner wall of the outer ring (1) and the outer surface of the inner ring (6), and the inner wall of the outer ring (1) and the outer surface of the inner ring (6) are respectively processed with grooves with a circular arc cross section in the circumferential direction, and a plurality of pockets are respectively processed evenly in the circumferential direction at both ends of the outer surface of the retainer (5), and a roller (3) is arranged inside each pocket, and an outer baffle (2) is respectively arranged on both sides of the outer ring (1), and two threaded holes (1-1) are respectively processed evenly in the circumferential direction on the end surfaces of both sides of the outer ring (1), and the outer baffle (2) is fixedly connected to the outer ring (1) by fixing bolts (2-1), and a sealing ring (4) is arranged between the outer edge of the inner wall of each outer baffle (2) and the edge of the outer surface of the inner ring (6).

2. A sealed spherical roller bearing according to claim 1, characterized in that: Both ends of the outer surface of the inner ring (6) are respectively machined with a guide bevel along the circumferential direction.

3. The sealed spherical roller bearing according to claim 1, characterized in that: The sealing ring (4) and the inner ring (6) are interference fit.

4. The sealed spherical roller bearing according to claim 1, characterized in that: A plurality of oil injection holes are evenly processed in the middle of the outer surface of the outer ring (1) along the circumferential direction.

5. The sealed spherical roller bearing according to claim 1, characterized in that: One end surface of the outer baffle (2) is processed with an annular groove along the edge of the central hole.

6. A sealed spherical roller bearing according to claim 5, characterized in that: One end of the sealing ring (4) is embedded in the annular groove on the end surface of the outer baffle (2).

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