Dense ball sleeve bearing for worm gear hobbing machine

Abstract

The utility model discloses a dense ball sleeve bearing for a worm gear hobbing machine, which comprises an inner ring and an outer ring sleeved on the inner ring, balls are densely filled and rolled between the inner ring and the outer ring, the dense ball sleeve bearing further comprises sealing plates movably arranged on two sides of the balls, catching grooves are further arranged on the side walls of the outer ring and the inner ring, and the catching grooves are communicated with the sealing plates. And a spring buckle for limiting the sealing plate is movably buckled in the buckling groove. The utility model belongs to the technical field of bearings, and particularly relates to a dense ball sleeve bearing for a worm gear hobbing machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, in particular to a dense bead sleeve bearing used for a worm gear hobbing machine. Background Art

[0002] The main function of the bearing is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. During the processing of the worm gear hobbing machine, the bearings face complex and extreme stress conditions.

[0003] Traditional bearing seal structures are relatively simple, and most are assembled and fixed by snap-on methods. As the equipment's operating time increases and the complexity of working conditions increases, faced with the coolant and metal debris that abound in the gear hobbing machining site, once the seal structure falls off or is missing, impurities can easily invade the interior of the bearing, causing ball jamming, raceway scratches and other faults, seriously affecting the overall rotation accuracy and service life of the bearing. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing bearing sealing structure is relatively simple, which easily causes debris to enter the interior of the bearing, thereby affecting the service life of the bearing.

[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: a dense ball sleeve bearing for a worm gear hobbing machine includes an inner ring and an outer ring sleeved on the inner ring, and the inner ring and the outer ring are densely filled with rolling balls. It also includes a sealing plate movably placed on both sides of the balls, and buckle grooves are also provided on the side walls of the outer ring and the inner ring. The buckle grooves are movable with spring buckles for limiting the sealing plates.

[0006] Furthermore, the spring buckle is in the shape of a ring with a gap, and buckles are connected to both ends of the spring buckle.

[0007] Furthermore, a barrier frame is fixedly connected to the inner side wall of the sealing plate, and a rolling groove for the balls to rotate is provided on the barrier frame.

[0008] Furthermore, sealing oil grooves are provided on the side walls of the outer ring and the inner ring.

[0009] Preferably, the outer ring is provided with a protective plate on the movable buckle and is placed on the outer side of the sealing plate, and the inner side of the protective plate is movably buckled with the inner ring.

[0010] The utility model adopts the above structure to achieve the following beneficial effects: the bead sleeve bearing for worm gear hobbing machine provided by the utility model can limit the sealing plate by setting a sealing plate, cooperating with the buckle groove and the spring buckle, thereby improving the sealing stability of the sealing plate, and at the same time adding a sealing oil groove to reduce the friction between the sealing plate and the outer ring and the inner ring, while further increasing the sealing effect. By setting a protective plate, secondary sealing can be performed to further improve the sealing effect and avoid the wear of impurities on the inside of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structure diagram of the dense bead sleeve bearing for the worm gear hobbing machine proposed by the utility model;

[0012] Figure 2 This is a cross-sectional structural diagram of a dense bead sleeve bearing for a worm gear hobbing machine proposed in the present utility model;

[0013] Figure 3 This is the partial structure of the dense bead sleeve bearing for the worm gear hobbing machine proposed by the utility model Figure 1 ;

[0014] Figure 4 This is the partial structure of the dense bead sleeve bearing for the worm gear hobbing machine proposed by the utility model Figure 2 ;

[0015] Figure 5 This is a structural diagram of the inner and outer rings of the dense bead sleeve bearing for the worm gear hobbing machine proposed in the utility model;

[0016] Figure 6 for Figure 2 A partial enlarged view of point A in the middle.

[0017] Among them, 1. Inner ring, 2. Outer ring, 3. Ball, 4. Sealing plate, 5. Buckle groove, 6. Spring buckle, 7. Buckling ring, 8. Spacer, 9. Roller groove, 10. Sealing oil groove, 11. Protective plate. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-6 As shown, the dense ball sleeve bearing for worm gear hobbing machine proposed by the present invention includes an inner ring 1 and an outer ring 2 sleeved on the inner ring 1, with balls 3 densely filled and rolling between the inner ring 1 and the outer ring 2, and also includes a sealing plate 4 movably placed on both sides of the balls 3, a barrier frame 8 is fixedly connected to the inner side wall of the sealing plate 4, and a rolling groove 9 for the rotation of the balls 3 is opened on the barrier frame 8, and a buckle groove 5 is further provided on the side walls of the outer ring 2 and the inner ring 1, and a spring buckle 6 for limiting the sealing plate 4 is movably buckled in the buckle groove 5, and the spring buckle 6 is an annular arrangement with a notch. Both ends of the spring buckle 6 are connected with a buckle ring 7. After the installation inside the bearing is completed and filled with lubricating grease, the rolling groove 9 and the ball 3 are placed together so that the barrier frame 8 is placed between the inner ring 1 and the outer ring 2, and the sealing ring is installed on both sides of the ball 3 to seal the gap between the inner ring 1 and the outer ring 2, and the spring buckle 6 is buckled in the buckle groove 5 to limit the sealing plate 4. When dismantling, use tweezers or other pointed objects to insert into the buckle ring 7 and squeeze it towards the middle to deform the spring buckle 6 and disengage from the buckle groove 5, and the sealing plate 4 can be taken out.

[0021] like Figure 6 As shown, sealing oil grooves 10 are further provided on the side walls of the outer ring 2 and the inner ring 1 to increase the lubrication effect between the sealing plate 4 and the inner ring 1 and the outer ring 2, reduce friction, and improve sealing.

[0022] like Figure 1 、 2 As shown in FIG6 , a protective plate 11 is movably provided on the outer ring 2 and is placed on the outside of the sealing plate 4. The inner side of the protective plate 11 is movably connected to the inner ring 1, which can provide preliminary protection against external debris and further increase the sealing inside the bearing.

[0023] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A dense ball sleeve bearing for a worm gear hobbing machine, comprising an inner ring (1) and an outer ring (2) sleeved on the inner ring (1), wherein balls (3) are densely packed and rolled between the inner ring (1) and the outer ring (2), and characterized in that: The invention also includes sealing plates (4) movably placed on both sides of the ball (3), and buckle grooves (5) are provided on the side walls of the outer ring (2) and the inner ring (1), and spring buckles (6) for limiting the sealing plates (4) are movably provided in the buckle grooves (5).

2. The dense bead sleeve bearing for worm gear hobbing machine according to claim 1, characterized in that: The spring buckle (6) is annular with a gap, and buckles (7) are connected to both ends of the spring buckle (6).

3. The dense bead sleeve bearing for worm gear hobbing machine according to claim 2, characterized in that: A barrier frame (8) is fixedly connected to the inner side wall of the sealing plate (4), and a rolling groove (9) for the ball (3) to rotate is provided on the barrier frame (8).

4. The dense bead sleeve bearing for worm gear hobbing machine according to claim 3, characterized in that: Sealing oil grooves (10) are also provided on the side walls of the outer ring (2) and the inner ring (1).

5. The dense bead sleeve bearing for worm gear hobbing machine according to claim 4, characterized in that: A protective plate (11) is movably buckled on the outer ring (2) and is placed on the outer side of the sealing plate (4); the inner side of the protective plate (11) is movably buckled with the inner ring (1).

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