High-strength sealed bearing

Abstract

The utility model discloses a high-strength sealed bearing which comprises an outer ring and steel balls, and the steel balls are mounted in the outer ring. The bearing further comprises a retainer which is annularly arranged on the outer side of the steel ball in a sleeving mode, dustproof covers are installed at the left end and the right end of the retainer, sealing blocks are arranged at the upper end and the lower end of each dustproof cover, sealing layers are installed in the dustproof covers, bolts are installed on the outer side of the retainer, and an inner ring is installed on the inner side of the steel ball. A lubricating oil groove is formed in the inner ring, a blocking net is installed at the outer end of the lubricating oil groove, a through groove is formed in the outer end of the blocking net, the steel balls are connected in the retainer in a clamping sleeve mode, and the steel balls are distributed at equal angles relative to the central axis of the inner ring. The high-strength sealed bearing is convenient for reducing frictional resistance and increasing transmission efficiency, is good in sealing effect, is convenient for preventing water and dust, effectively prolongs the service life of the bearing, and is convenient for realizing automatic lubrication of a device through volatilization.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed bearings, in particular to a high-strength sealed bearing. Background Art

[0002] A bearing is a shaft or axle knob used to support and rotate a machine. It is an important component in modern mechanical equipment. It can support the weight of the machine shaft during machine operation, reduce friction resistance, make the machine run more smoothly, and at the same time reduce the friction coefficient during its movement to ensure rotation accuracy.

[0003] A bearing provided by announcement number CN 207848210 U belongs to the field of rotary support equipment, including a bearing inner ring, a bearing outer ring sleeved on the outer periphery of the bearing inner ring, a roller arranged between the bearing inner ring and the bearing outer ring, and a bearing sealing structure arranged at both ends of the bearing inner ring and the bearing outer ring; the bearing outer ring is provided with at least one annular placement groove with an opening facing away from the central axis of the bearing outer ring, and an elastic expansion ring is arranged in the annular placement groove, and the outer peripheral surface of the elastic expansion ring is flush with the outer peripheral surface of the bearing outer ring. The bearing provided by the utility model can retract to a certain extent in the radial direction and the axial direction respectively under the action of the assembly pressure during assembly, which is convenient for assembly. After assembly, the external assembly pressure disappears, and the bearing outer ring can automatically rebound to a certain extent along its own axial direction and radial direction, and automatically maintain a tightening state with external components, and the tightening effect is good after assembly.

[0004] The above-mentioned prior art solutions have the following defects: the bearing is not convenient for reducing friction resistance, has low transmission efficiency, poor sealing effect, is not convenient for waterproofing and dustproofing, has a short service life of the bearing, and the device cannot be lubricated. Therefore, the utility model provides a high-strength sealed bearing to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-strength sealed bearing to solve the problems raised in the above background technology that the bearing is not convenient for reducing friction resistance, has low transmission efficiency, poor sealing effect, is not convenient for waterproofing and dustproofing, has a short service life of the bearing, and the device cannot be lubricated.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: 1. A high-strength sealed bearing, comprising an outer ring and a steel ball, wherein the steel ball is installed inside the outer ring;

[0007] Also includes:

[0008] A retaining frame, which is sleeved on the outside of the steel ball, is provided with dust covers at both left and right ends of the retaining frame, and sealing blocks are provided at both upper and lower ends of the dust covers, and a sealing layer is provided inside the dust covers, bolts are provided on the outside of the retaining frame, an inner ring is provided on the inside of the steel ball, and a lubricating oil groove is provided inside the inner ring, and a barrier net is provided at the outer end of the lubricating oil groove, and a through groove is provided at the outer end of the barrier net.

[0009] Preferably, the steel balls are connected inside the retaining frame by means of a ferrule, and the steel balls are distributed at equal angles with respect to the central axis of the inner ring.

[0010] Preferably, the retaining frame is a hollow ring structure, and circular grooves for fitting the steel balls are provided at equal intervals inside the retaining frame.

[0011] Preferably, the dust cover is provided at both the front and rear ends of the outer ring, and the upper and lower ends of the dust cover are symmetrically connected with sealing blocks.

[0012] Preferably, the sealing block at the outer end of the dust cover is connected to the outer ring in a snap-fit ​​manner, and the sealing block at the inner end of the dust cover is connected to the inner ring in a snap-fit ​​manner.

[0013] Preferably, the barrier net is arranged inside the inner ring, and the inner end of the barrier net is provided with through grooves radiating to both sides with the central axis as the center.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the high-strength sealed bearing is convenient for reducing friction resistance, increasing transmission efficiency, having good sealing effect, being convenient for waterproofing and dustproofing, effectively extending the service life of the bearing, and being convenient for realizing automatic lubrication of the device through volatilization;

[0015] 1. Steel balls and cages are provided to change sliding into rolling, which is convenient for reducing friction resistance and increasing transmission efficiency;

[0016] 2. It is equipped with a dust cover, a sealing block and an inner ring. The upper and lower ends of the sealing block fit perfectly with the sealing grooves opened inside the device. The two sealing structures make the bearing have a good sealing effect, are easy to waterproof and dustproof, and effectively extend the service life of the bearing;

[0017] 3. It is equipped with lubricating oil groove, barrier net and through groove. The lubricating oil adheres to the surface of the steel ball through volatilization to achieve automatic lubrication. The barrier net is set to block the liquid lubricating oil and prevent oil backflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0022] In the figure: 1. outer ring; 2. steel ball; 3. retaining frame; 4. dust cover; 5. sealing block; 6. sealing layer; 7. inner ring; 8. lubricating oil groove; 9. connecting block; 10. barrier net; 11. through groove; 12. bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a high-strength sealed bearing, including an outer ring 1, a steel ball 2, a retaining frame 3, a dust cover 4, a sealing block 5, a sealing layer 6, an inner ring 7, a lubricating oil groove 8, a connecting block 9, a barrier net 10, a through groove 11 and a bolt 12.

[0025] The retaining frame 3 is sleeved on the outside of the steel ball 2, and dust covers 4 are installed on both left and right ends of the retaining frame 3, and sealing blocks 5 are provided on the upper and lower ends of the dust cover 4, and a sealing layer 6 is installed inside the dust cover 4, bolts 12 are installed on the outside of the retaining frame 3, an inner ring 7 is installed on the inside of the steel ball 2, and a lubricating oil groove 8 is opened inside the inner ring 7, and a barrier net 10 is installed on the outer end of the lubricating oil groove 8, and a through groove 11 is provided on the outer end of the barrier net 10.

[0026] like Figure 1 and Figure 2 As shown, the steel balls 2 are connected inside the retainer 3 by means of a ferrule, and the steel balls 2 are distributed at equal angles about the central axis of the inner ring 7. The retainer 3 is a hollow circular ring structure, and circular slots that fit the steel balls 2 are provided at equal intervals inside the retainer 3. When installing the device, the retainer 3 is installed in the groove of the retainer 3, and the retainer 3 is threadedly fixed with bolts 12 at the connection points between the retainer 3 and the retainer 3. The inner ring 7 is sleeved onto the inner ring of the retainer 3, the outer ring 1 is sleeved onto the outer ring, and the dust cover 4 is symmetrically buckled with the dust cover 4 on the outside of the retainer 3. When in use, the bearing is connected between the transmission rods, changing sliding into rolling, which is convenient for reducing friction resistance and increasing transmission efficiency.

[0027] like Figure 2 and Figure 3 As shown, the dust cover 4 is provided at both the front and rear ends of the outer ring 1, and the upper and lower ends of the dust cover 4 are symmetrically connected with sealing blocks 5, the sealing block 5 at the outer end of the dust cover 4 is connected to the outer ring 1 by a snap-fitting manner, and the sealing block 5 at the inner end of the dust cover 4 is connected to the inner ring 7 by a snap-fitting manner, the dust covers 4 are mirror-symmetrically arranged along the radial surface of the bearing, and the space between the retaining frame 3 and the dust cover 4 is sealed in an elastic abutment manner, the upper and lower ends of the sealing block 5 are perfectly fitted with the sealing groove opened inside the device, and the two sealing structures make the bearing have a good sealing effect, are convenient for waterproofing and dustproofing, and effectively extend the service life of the bearing.

[0028] like Figure 2 and Figure 4 The barrier net 10 shown is arranged inside the inner ring 7, and the inner end of the barrier net 10 is radially provided with through grooves 11 on both sides with the central axis as the center, and a lubricating oil groove 8 for assembling lubricating oil is provided inside the inner ring 7. When the bearing is used under high intensity, the heat energy generated causes the temperature of the retaining frame 3 and the inner ring 7 to rise, so that the lubricating oil in the lubricating oil groove 8 evaporates, and passes through the barrier net 10 through the through groove 11 and adheres to the surface of the steel ball 2, thereby realizing the effect of automatic lubrication. The setting of the barrier net 10 is convenient for blocking the liquid lubricating oil and preventing the oil from backflowing.

[0029] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength sealed bearing, comprising an outer ring (1) and a steel ball (2), wherein the steel ball (2) is mounted inside the outer ring (1); It is characterized in that Also includes: A retainer (3) is sleeved on the outside of the steel ball (2), dust covers (4) are installed on both left and right ends of the retainer (3), and sealing blocks (5) are provided on both upper and lower ends of the dust cover (4), and a sealing layer (6) is installed inside the dust cover (4), bolts (12) are installed on the outside of the retainer (3), an inner ring (7) is installed on the inside of the steel ball (2), and a lubricating oil groove (8) is opened inside the inner ring (7), and a barrier net (10) is installed on the outer end of the lubricating oil groove (8), and a through groove (11) is provided on the outer end of the barrier net (10).

2. A high-strength sealed bearing according to claim 1, characterized in that: The steel balls (2) are connected inside the retaining frame (3) by means of a ferrule, and the steel balls (2) are distributed at equal angles with respect to the central axis of the inner ring (7).

3. A high-strength sealed bearing according to claim 1, characterized in that: The retaining frame (3) is in the form of a hollow circular ring structure, and circular grooves for fitting the steel balls (2) are provided at equal intervals inside the retaining frame (3).

4. A high-strength sealed bearing according to claim 1, characterized in that: The dust cover (4) is arranged at both the front and rear ends of the outer ring (1), and the upper and lower ends of the dust cover (4) are symmetrically connected with sealing blocks (5).

5. A high-strength sealed bearing according to claim 1, characterized in that: The sealing block (5) at the outer end of the dust cover (4) is connected to the outer ring (1) in a snap-fit ​​manner, and the sealing block (5) at the inner end of the dust cover (4) is connected to the inner ring (7) in a snap-fit ​​manner.

6. A high-strength sealed bearing according to claim 1, characterized in that: The barrier net (10) is arranged inside the inner ring (7), and through grooves (11) are arranged radially on both sides of the inner end of the barrier net (10) with the central axis as the center.

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