Integrated double-row ball bearing

Abstract

The utility model belongs to the technical field of bearings, and particularly relates to an integrated double-row ball bearing which comprises an outer ring, balls, an inner ring and a dustproof sealing ring, the balls comprise a first row of balls and a second row of balls, and the first row of balls and the second row of balls are rotatably and symmetrically arranged between the outer ring and the inner ring. Hollowed-out grooves are formed in the two sides of the outer ring, a rotating ring is rotationally connected to a supporting piece fixed to the outer surface of the inner ring, and the dustproof sealing ring is detachably assembled on the hollowed-out grooves of the outer ring and the rotating ring. The supporting piece is arranged on the outer wall of the inner ring, the rotating ring is rotationally connected to the supporting piece, the dustproof sealing ring is arranged between the hollowed-out groove of the outer ring and the rotating ring, and the rotating ring can rotate and does not affect relative rotation between the inner ring and the outer ring, so that the dustproof sealing ring can perform effective dustproof protection; the problem that a double-row ball bearing at the present stage is not good enough in dustproof effect is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely is integrated double row ball bearing. BACKGROUND

[0002] Ball bearing is a kind of rolling bearing, install spherical alloy steel ball in the middle of inner ring and outer ring, there is excellent tightness between the raceway of ball bearing and steel ball, to reduce friction in the process of power transmission and improve the transmission efficiency of mechanical power in rolling mode, ball bearing cannot bear large heavy load, it is more common in light industry machinery, by searching patent no. CN201520332775.9 discloses integrated double row ball bearing, the bearing of the scheme adopts double row ball design, two rows of balls are in back-to-back angular contact form, eliminate axial play, to solve the axial movement when two sets of bearings are used side by side, eliminate equipment jitter, but the scheme still has certain defects and insufficient when using, first, the scheme sets sealing ring on the inner side of outer ring, reach the purpose of dustproof through the mode of sealing ring, then reduce the influence of dust on the inner side ball, but the scheme still has certain gap between sealing ring and inner ring to ensure the stable rotation between inner ring and outer ring, therefore external air and dust can still enter between inner ring and outer ring, then affect the ball, dustproof, anti-foreign object effect is not thorough enough, and the scheme lacks oil injection structure, can not guarantee the use effect of double row ball bearing well, thus needs to be improved. UTILITARIAN CONTENT

[0003] In view of the deficiencies of prior art, the utility model provides integrated double row ball bearing, sets up support on the outer wall of inner ring, rotatably connects rotary ring on the support, sets up dustproof sealing ring between the rotary ring and the hollow groove of outer ring, since the rotary ring can rotate, does not affect the relative rotation between inner ring and outer ring, so that the dustproof sealing ring can effectively prevent dust, solve the problem that the dustproof effect of double row ball bearing is not good at present.

[0004] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0005] Integrated double row ball bearing, including outer ring, ball and inner ring, the ball includes first column ball and second column ball, the first column ball and second column ball rotatable symmetry setting between outer ring and inner ring, still include dustproof sealing ring, the both sides of outer ring are all set up hollow groove, and rotatably connect the rotary ring on the support of fixed support surface of inner ring, the dustproof sealing ring can be detachably assembled on the hollow groove of outer ring and rotary ring.

[0006] Furthermore, a first fixing member is provided at the connection between the dustproof sealing ring and the outer ring, and a second fixing member is provided at the connection between the dustproof sealing ring and the rotating ring. Both the first fixing member and the second fixing member are screws.

[0007] Furthermore, the thickness of the outer ring is flush with the thickness of the inner ring.

[0008] Furthermore, an annular groove is provided at the center of the outer wall of the outer ring, and an oil inlet is provided at the groove of the outer ring, extending through the outer ring and the inner ring. A sealing plug is provided at the oil inlet of the outer ring.

[0009] Furthermore, a sealing gasket is provided at the connection between the sealing plug and the outer ring.

[0010] Compared with the prior art, this utility model provides an integrated double-row ball bearing, which has the following advantages:

[0011] This invention relates to a double-row ball bearing. By fixing a support member to the outer wall of the inner ring and rotating a ring to the support member, a dustproof sealing ring is provided between the rotating ring and the hollow groove of the outer ring. Therefore, the dustproof sealing ring does not affect the relative rotation between the inner and outer rings, allowing the double-row ball bearing to operate stably. The dustproof sealing ring is tightly set between the outer and inner rings, which can effectively ensure the dustproof effect of the double-row ball bearing, prevent dust and foreign objects from affecting the balls, and ensure the performance of the double-row ball bearing.

[0012] This invention features a groove on the outer ring with an oil inlet extending between the inner and outer rings. This allows for the addition of lubricating oil to ensure the effective rotation of the balls. A sealing gasket between the sealing plug and the outer ring provides excellent sealing and protection. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention;

[0014] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0015] Figure 3 This utility model Figure 1 Enlarged view of the structure at point B;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Outer ring; 2. First row of balls; 3. Inner ring; 4. Groove; 5. Second row of balls; 6. Hollowed-out groove; 7. First fixing component; 8. Dustproof sealing ring; 9. Second fixing component; 10. Rotating ring; 11. Support component; 12. Oil inlet; 13. Sealing plug; 14. Sealing gasket. Detailed Implementation

[0018] 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. Example

[0019] like Figure 1 , Figure 2 and Figure 4 As shown, an embodiment of the present invention proposes an integrated double-row ball bearing, including an outer ring 1, balls and an inner ring 3. The balls include a first row of balls 2 and a second row of balls 5. The first row of balls 2 and the second row of balls 5 are rotatably and symmetrically arranged between the outer ring 1 and the inner ring 3. It also includes a dustproof sealing ring 8. Hollow grooves 6 are provided on both sides of the outer ring 1, and a rotating ring 10 is rotatably connected to a support member 11 fixed on the outer surface of the inner ring 3. The dustproof sealing ring 8 is detachably assembled on the hollow grooves 6 of the outer ring 1 and the rotating ring 10.

[0020] It should be noted that by setting the first row of balls 2 and the second row of balls 5 between the outer ring 1 and the inner ring 3, the ball bearing is configured in a double row. The two rows of balls effectively ensure the stability of the bearing and prevent equipment vibration. The dustproof seal 8 prevents external dust and other foreign objects from entering between the outer ring 1 and the inner ring 3, thus avoiding their impact on the operation of the first row of balls 2 and the second row of balls 5. A perforated groove 6 is formed on the inner wall of the outer ring 1 to accommodate the dustproof seal 8. The bearing is fixed by setting a support member 11 on the outer wall of the inner ring 3. The support member 11 is used for the rotational installation of the rotating ring 10. The dustproof sealing ring 8 is set between the rotating ring 10 and the hollow groove 6 of the outer ring 1, which can effectively protect the gap between the outer ring 1 and the inner ring 3, and prevent dust and other foreign objects from entering the inner side of the outer ring 1 and the inner ring 3, thereby affecting the balls. Since the rotating ring 10 can rotate, the entire bearing can rotate normally when the outer ring 1 and the inner ring 3 are running, without affecting the operation between the outer ring 1 and the inner ring 3.

[0021] like Figure 2As shown, in some embodiments, a first fixing member 7 is provided at the connection between the dustproof sealing ring 8 and the outer ring 1, and a second fixing member 9 is provided at the connection between the dustproof sealing ring 8 and the rotating ring 10. Both the first fixing member 7 and the second fixing member 9 are screws.

[0022] It should be noted that the first fixing part 7 is used to install and fix the dustproof sealing ring 8 in the hollow groove 6, and the second fixing part 9 is used to fix the dustproof sealing ring 8 on the rotating ring 10, thereby realizing the assembly and fixation of the dustproof sealing ring 8. Both the first fixing part 7 and the second fixing part 9 are screws, which are easy to operate and have a good firmness effect.

[0023] like Figure 1 As shown, in some embodiments, the thickness of the outer ring 1 is flush with the thickness of the inner ring 3, enabling the entire bearing to rotate stably and operate normally.

[0024] like Figure 1 and Figure 3 As shown, in some embodiments, an annular groove 4 is provided at the center of the outer wall of the outer ring 1, and an oil inlet 12 is provided at the groove 4 of the outer ring 1, extending through the outer ring 1 and the inner ring 3, and a sealing plug 13 is provided at the oil inlet 12 of the outer ring 1.

[0025] It should be noted that the groove 4 ensures the stability of the center of gravity of the outer ring 1. By opening an oil inlet 12 in the groove 4 of the outer ring 1, the oil inlet 12 extends between the outer ring 1 and the inner ring 3, lubricating oil can be added through the oil inlet 12 to lubricate the balls and ensure their smooth operation. By setting a sealing plug 13 at the oil inlet 12 of the outer ring 1, the oil inlet 12 is protected.

[0026] like Figure 3 As shown, in some embodiments, a sealing gasket 14 is provided at the connection between the sealing plug 13 and the outer ring 1 to prevent oil leakage.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An integral double-row ball bearing, comprising an outer ring (1), balls, and an inner ring (3), characterized in that: The ball bearings include a first row of ball bearings (2) and a second row of ball bearings (5). The first row of ball bearings (2) and the second row of ball bearings (5) are rotatably and symmetrically arranged between the outer ring (1) and the inner ring (3). The ball bearings also include a dustproof sealing ring (8). Hollow grooves (6) are provided on both sides of the outer ring (1). A rotating ring (10) is rotatably connected to a support member (11) fixed on the outer surface of the inner ring (3). The dustproof sealing ring (8) is detachably assembled on the hollow groove (6) of the outer ring (1) and the rotating ring (10).

2. The integrated double-row ball bearing according to claim 1, characterized in that: A first fixing member (7) is provided at the connection between the dustproof sealing ring (8) and the outer ring (1), and a second fixing member (9) is provided at the connection between the dustproof sealing ring (8) and the rotating ring (10). Both the first fixing member (7) and the second fixing member (9) are screws.

3. The integrated double-row ball bearing according to claim 1, characterized in that: The thickness of the outer ring (1) is flush with the thickness of the inner ring (3).

4. The integrated double-row ball bearing according to claim 1, characterized in that: An annular groove (4) is provided at the center of the outer wall of the outer ring (1), and an oil inlet (12) is provided at the groove (4) of the outer ring (1) to the inner ring (3). A sealing plug (13) is provided at the oil inlet (12) of the outer ring (1).

5. The integrated double-row ball bearing according to claim 4, characterized in that: A sealing gasket (14) is provided at the connection between the sealing plug (13) and the outer ring (1).

Images