Bearing with oil seepage prevention effect

Abstract

The utility model provides a bearing with an oil seepage prevention effect, which relates to the technical field of oil seepage prevention of bearings and comprises a bearing inner ring and a bearing outer ring, clamping grooves are arranged on two sides of opposite surfaces of the bearing outer ring and the bearing inner ring, and inner side sealing washers are mounted in the clamping grooves. A connecting sealing washer is integrally formed between the two inner side sealing washers on the same side, and by arranging the connecting sealing washer with the thickness smaller than that of the inner side sealing washers, when one of the two inner side sealing washers connected with the connecting sealing washer is abraded due to rotation of the bearing outer ring or the bearing inner ring, under the action of external force, the bearing outer ring or the bearing inner ring is not abraded. And the flexibility of the connecting sealing gasket is utilized, so that the abraded inner side sealing gasket can move towards the bearing outer ring or the bearing inner ring relative to the other inner side sealing gasket, and the sealing performance of the abraded inner side sealing gasket is ensured under the condition that the sealing performance of the other inner side sealing gasket is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-oil seepage of bearings, in particular to a bearing with anti-oil seepage effect. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy, such as in vehicle wheel hubs.

[0003] For example, an oil-seepage-proof wheel hub bearing of the prior art, with the announcement number CN218760965U, comprises an outer ring bearing, an inner ring bearing, a retaining frame, a transmission steel ball, a reinforcement part, and a sealing auxiliary ring; there are two sealing auxiliary rings, which are respectively arranged at the left and right ends of the outer sides of the outer ring bearing and the inner ring bearing, and the sealing auxiliary rings comprise elastic auxiliary rods, extrusion springs, and extrusion blocks; there are multiple groups of elastic auxiliary rods, which are evenly arranged on the outer sides of the two sealing auxiliary rings, and the outer ends of the elastic auxiliary rods are fixedly connected to the inner sides of the two sealing auxiliary rings; there are multiple extrusion springs. There are multiple groups of extrusion springs, which are respectively and concentrically fixedly connected to the inner sides of multiple groups of elastic auxiliary rods; there are multiple groups of extrusion blocks, whose outer ends are respectively and fixedly connected to the inner ends of multiple extrusion springs, and whose inner ends are fixedly connected to the outer ends of the sealing auxiliary rings. When the outer ends of the sealing auxiliary rings are worn, the outer ends of the sealing auxiliary rings are compensated by the outer ring sealing lips and the inner ring sealing lips, thereby improving the sealing effect and service life of the wheel hub bearing and effectively alleviating the oil leakage problem of the wheel hub bearing; by extruding the sealing auxiliary rings, the generation of gaps between the sealing auxiliary rings and the outer ring bearings and the inner ring bearings is effectively avoided.

[0004] However, when the bearing is running, only the inner ring bearing or the outer ring bearing rotates, so the inner outer edge or inner edge of the extrusion block will wear, causing the inner surface of the extrusion block to be uneven, and the extrusion block is a whole. Therefore, under the push of the extrusion spring, the worn surface of the extrusion block can continue to fit the corresponding inner ring bearing or outer ring bearing, but on the contrary, the unworn surface of the extrusion block will also tilt, causing the unworn surface to not completely fit with the fitted inner ring bearing or outer ring bearing, thus affecting the sealing. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provides a bearing with anti-oil leakage effect.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bearing with anti-oil seepage effect, the bearing comprising a bearing inner ring and a bearing outer ring, grooves are provided on both sides of the opposite surfaces of the bearing outer ring and the bearing inner ring, and inner sealing gaskets are installed in the grooves, a connecting sealing gasket is integrally formed between the two inner sealing gaskets on the same side, connecting rings are detachably installed on both sides of the bearing outer ring, a plurality of spring rods distributed in an annular array are fixedly connected to the position of each inner sealing gasket on one side of the connecting ring, and an extrusion ring for resisting the inner sealing gasket is fixedly connected to the telescopic ends of the plurality of spring rods distributed in an annular array.

[0007] Preferably, a plurality of screw rods are rotatably connected through the end surface of the connecting ring, and threaded holes threadably connected to the screw rods are provided on the side of the outer ring of the bearing.

[0008] Preferably, the connecting ring is rotatably connected to a gear ring on the side facing away from the outer ring of the bearing, and the end face of the screw is fixedly connected to a gear meshing with the gear ring.

[0009] Preferably, a plurality of plug-in blocks are integrally formed on the side of the extrusion ring facing the outer ring of the bearing, and a slot for plugging with the plug-in block is formed on the side surface of the inner sealing gasket.

[0010] Preferably, a through groove is formed on the outer wall of the outer ring of the bearing, and an embedded seat is detachably mounted in the through groove by means of screws.

[0011] Preferably, the two inner sealing gaskets on the same side are flexibly connected via a connecting sealing gasket.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by providing a connecting sealing gasket with a thickness smaller than that of the inner sealing gasket, when one of the two inner sealing gaskets connected thereto is worn due to the rotation of the bearing outer ring or the bearing inner ring, under the action of external force and by utilizing the flexibility of the connecting sealing gasket, the worn inner sealing gasket can move toward the bearing outer ring or the bearing inner ring relative to the other inner sealing gasket, thereby ensuring the sealing performance of the worn inner sealing gasket without affecting the sealing performance of the other inner sealing gasket.

[0014] 2. In the utility model, the gear ring is rotated to realize the rotation of several gears meshing with it, and then the screw of the corresponding gear is rotated. The screw is connected with the threaded hole by thread, so that the screw can enter and exit the threaded hole, and then the connecting ring is moved relative to the outer ring of the bearing, that is, the connecting ring is disassembled and assembled, so that the inner sealing gasket can be replaced easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A three-dimensional structural schematic diagram of a bearing with anti-oil seepage effect is proposed for the utility model;

[0016] Figure 2 The utility model proposes a bearing with anti-oil seepage effect Figure 1 Schematic diagram of the cross-section structure;

[0017] Figure 3 The utility model proposes a bearing with anti-oil seepage effect Figure 1 Schematic diagram of the side section structure;

[0018] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0020] Legend: 1. Bearing outer ring; 2. Bearing inner ring; 3. Inner seat; 4. Connecting ring; 5. Gear ring; 6. Spring rod; 7. Extrusion ring; 8. Insert block; 9. Inner sealing gasket; 10. Connecting sealing gasket; 11. Slot; 12. Slot; 13. Screw; 14. Threaded hole; 15. Gear; 16. Through slot. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] like Figure 1-5As shown, a bearing with anti-oil seepage effect, the bearing includes a bearing inner ring 2 and a bearing outer ring 1, grooves 11 are provided on both sides of the opposite surfaces of the bearing outer ring 1 and the bearing inner ring 2, and inner sealing gaskets 9 are installed in the grooves 11, and a connecting sealing gasket 10 is integrally formed between the two inner sealing gaskets 9 on the same side, and the two inner sealing gaskets 9 on the same side are flexibly connected by the connecting sealing gasket 10, and the thickness of the connecting sealing gasket 10 is less than the thickness of the inner sealing gasket 9, so that when one of the two inner sealing gaskets 9 connected thereto is worn due to the rotation of the bearing outer ring 1 or the bearing inner ring 2, under the action of external force and by utilizing the flexibility of the connecting sealing gasket 10, the worn inner sealing gasket 9 can be relative to the other inner The side sealing gasket 9 moves toward the bearing outer ring 1 or the bearing inner ring 2, and the sealing of the worn inner sealing gasket 9 is ensured without affecting the sealing of the other inner sealing gasket 9. The connecting rings 4 are detachably installed on both sides of the bearing outer ring 1. A plurality of spring rods 6 distributed in an annular array are fixedly connected to the position of each inner sealing gasket 9 on one side of the connecting ring 4, and an extrusion ring 7 for resisting the inner sealing gasket 9 is fixedly connected to the telescopic ends of the plurality of spring rods 6 distributed in an annular array. By fixing the position of the connecting ring 4, the extrusion ring 7 applies an external force to the inner sealing gasket 9 at the corresponding position under the elastic pushing action of the corresponding plurality of spring rods 6, so as to ensure that the inner sealing gasket 9 can automatically move to a sealing fit with the card slot 11 even in the case of wear.

[0024] In order to facilitate the replacement of the inner sealing gasket 9 and the connecting sealing gasket 10: a plurality of screws 13 are rotatably connected through the end face of the connecting ring 4, a threaded hole 14 threadedly connected to the screw 13 is opened on the side of the bearing outer ring 1, and the connecting ring 4 is rotatably connected to the side facing away from the bearing outer ring 1, and a gear 15 meshing with the gear ring 5 is fixedly connected to the end face of the screw 13. The gear ring 5 is rotated to realize the rotation of a plurality of gears 15 meshing with it, and then the rotation of the screw 13 corresponding to the gear 15 is realized, and the threaded connection between the screw 13 and the threaded hole 14 is utilized to realize the screw 13 entering and exiting the threaded hole 14, and then the connecting ring 4 is moved relative to the bearing outer ring 1, that is, the disassembly and assembly of the connecting ring 4 is realized, so as to facilitate the replacement of the inner sealing gasket 9.

[0025] In order to prevent the connection sealing gasket 10 from twisting: a plurality of plug-in blocks 8 are integrally formed on the side of the extrusion ring 7 facing the bearing outer ring 1, and a slot 12 connected with the plug-in block 8 is opened on the side of the inner sealing gasket 9. The spring rod 6 is used to ensure that the extrusion ring 7 and the connecting ring 4 will not rotate relative to each other, and the screw 13 is used to ensure that the connecting ring 4 will not rotate relative to the bearing outer ring 1, thereby ensuring that the plurality of plug-in blocks 8 on the extrusion ring 7 will not rotate relative to the bearing outer ring 1, and the plug-in blocks 8 on the inner extrusion ring 7 are inserted into the slots 12 on the surface of the inner sealing gasket 9, so that the inner sealing gasket 9 can be prevented from rotating relative to the connecting ring 4 under the rotation of the bearing outer ring 1 or the bearing inner ring 2, thereby preventing the thinner connection sealing gasket 10 from twisting.

[0026] In order to facilitate the installation of the balls inside the bearing: a through groove 16 is opened on the outer wall of the bearing outer ring 1, and an embedded seat 3 is detachably installed in the through groove 16 by screws. As shown in the figure, by removing the embedded seat 3, the interior of the bearing outer ring 1 can be exposed to the air, so it is convenient for personnel to disassemble and install the internal balls.

[0027] Installation steps: open the embedded seat 3 and put the ball between the bearing outer ring 1 and the bearing inner ring 2, then install the embedded seat 3, insert the inner sealing gasket 9 into the groove 11 on the side of the bearing outer ring 1 and the bearing inner ring 2, place the connecting ring 4 on one side of the bearing, and align the screw 13 with the threaded hole 14, then rotate the gear ring 5 to realize the rotation of several gears 15 meshing with it, and then realize the rotation of the screw 13 of the corresponding gear 15, and use the threaded connection between the screw 13 and the threaded hole 14 to realize the screw 13 entering the threaded hole 14, and then realize the connection ring 4 close to the bearing outer ring 1, until the two extrusion rings 7 on one side of the connecting ring 4 are pressed against the corresponding inner sealing gasket 9 surface, and the plug 8 on the extrusion ring 7 is inserted into the slot 12 on the inner sealing gasket 9.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A bearing with an anti-oil seepage effect, the bearing comprising a bearing inner ring (2) and a bearing outer ring (1), characterized in that: A clamping groove (11) is provided on both sides of the opposing surfaces of the bearing outer ring (1) and the bearing inner ring (2), and an inner sealing gasket (9) is installed in the clamping groove (11); a connecting sealing gasket (10) is integrally formed between the two inner sealing gaskets (9) on the same side; connecting rings (4) are detachably installed on both sides of the bearing outer ring (1); a plurality of spring rods (6) distributed in an annular array are fixedly connected to one side of the connecting ring (4) at the position of each inner sealing gasket (9); and a compression ring (7) for resisting the inner sealing gasket (9) is fixedly connected to the telescopic ends of the plurality of spring rods (6) distributed in an annular array.

2. The bearing with anti-oil seepage effect according to claim 1, characterized in that: The end surface of the connecting ring (4) is penetrated by a plurality of screw rods (13) for rotational connection, and the side of the bearing outer ring (1) is provided with threaded holes (14) for threaded connection with the screw rods (13).

3. The bearing with anti-oil seepage effect according to claim 2, characterized in that: The connecting ring (4) is rotatably connected to a gear ring (5) on the side facing away from the bearing outer ring (1), and the end surface of the screw rod (13) is fixedly connected to a gear (15) meshing with the gear ring (5).

4. The bearing with anti-oil seepage effect according to claim 1, characterized in that: A plurality of insert blocks (8) are integrally formed on the side of the extrusion ring (7) facing the bearing outer ring (1), and a slot (12) for plugging with the insert block (8) is provided on the side of the inner sealing gasket (9).

5. The bearing with anti-oil seepage effect according to claim 1, characterized in that: The outer wall of the bearing outer ring (1) is provided with a through groove (16), and an embedded seat (3) is detachably mounted in the through groove (16) by means of screws.

6. The bearing with anti-oil seepage effect according to claim 1, characterized in that: The two inner sealing gaskets (9) on the same side are flexibly connected via a connecting sealing gasket (10).

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