Bearing capable of preventing sealing ring from falling off

Abstract

The utility model belongs to the technical field of bearings, and particularly relates to a bearing capable of preventing a sealing ring from falling off, which comprises an outer ring and a sealing rubber ring, a retainer is arranged in the outer ring, a ball is arranged in the middle of the retainer, an inner ring is arranged on the inner side of the retainer, and the sealing rubber ring is arranged between the outer ring and the inner ring. And a connecting block is arranged on one side of the outer ring through a groove. The sealing rubber ring can be installed in the groove between the inner ring and the outer ring, then after the connecting block is loosened, the movable block can reset through the connecting spring, meanwhile, the movable block can extrude the clamping ball, the clamping ball can move towards the other side under extrusion of the movable block and extrude the sealing rubber ring in the groove of the outer ring, and therefore the sealing rubber ring can be installed in the groove of the outer ring. The sealing rubber ring is extruded by the clamping beads and can be prevented from falling off from the groove between the outer ring and the inner ring, so that the sealing rubber ring is prevented from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely is a bearing of preventing seal ring from falling off. BACKGROUND

[0002] Bearing is an important mechanical element, mainly used for supporting rotating shaft or other moving parts, reducing friction and supporting load, and is widely used in various mechanical equipment, such as automobile, bicycle, aircraft, motor, gear box etc. The design purpose of bearing is to ensure that the shaft can rotate smoothly in the running process, and the friction loss is reduced to the minimum.

[0003] In the prior art, in order to facilitate the disassembly of the sealing rubber ring, the inside of the bearing is filled with lubricating oil, and the sealing rubber ring is usually installed in the groove between the inner ring and the outer ring, since the extrusion limiting mechanism is not arranged, the sealing rubber ring is prone to loosen and fall off after long time use, thereby affecting the dustproof sealing effect of the bearing. SUMMARY

[0004] The utility model discloses a bearing of preventing seal ring from falling off to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a bearing of preventing seal ring from falling off, including outer ring and sealing rubber ring, the inside of outer ring is provided with retainer, the middle of retainer is provided with ball bearing, the inside of retainer is provided with inner ring, the sealing rubber ring is set between outer ring and inner ring;

[0006] One side of the outer ring is provided with a connecting block through a groove, one side of the connecting block is connected with a movable block, a side of the movable block away from the connecting block is provided with a ball clamping, and a connecting spring is arranged between the movable block and the groove of the outer ring.

[0007] Preferably, the movable block is slidingly connected in the groove of the outer ring, and the movable block and the connecting block are in an integrated structure.

[0008] Preferably, a cavity is formed in the inner part of the outer ring, an oil outlet hole is connected to the inner side of the cavity, and an oil inlet hole is connected to one side of the cavity.

[0009] Preferably, a rubber plug is arranged in the inner part of the oil inlet hole, and a fixed block is connected to one side of the rubber plug.

[0010] Preferably, a clamping block is arranged in the inner part of the fixed block, and one end of the clamping block is inserted into the arc-shaped groove in the inner wall of the oil inlet hole.

[0011] Preferably, a wedge-shaped block is arranged in the middle of the clamping block through a slope groove, and a reset spring is arranged between the two groups of wedge-shaped blocks and the groove of the fixed block.

[0012] Preferably, the top of the two groups of wedge-shaped blocks is provided with a pressing block penetrating the fixed block.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] When the sealing rubber ring is installed, the sealing rubber ring can be installed between the inner ring and the outer ring, then the movable block is reset by the connecting spring, and the movable block extrudes the sealing rubber ring in the groove of the outer ring through the clamping bead, so that the sealing rubber ring is prevented from falling off when being extruded, and the stability of the sealing rubber ring is enhanced.

[0015] When lubricating oil needs to be added to the utility model, the pressing block is extruded, the clamping block is extruded into the fixed block through the wedge-shaped block, the clamping block is not limited, and the rubber plug can be taken out, at this time, the lubricating oil can be injected through the oil inlet hole, the lubricating oil can enter the ball through the cavity and the oil outlet hole, so that the ball is lubricated, and the ball in the bearing is conveniently and quickly lubricated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional explosion structure schematic diagram of the utility model;

[0017] Figure 2 It is a front view structure schematic diagram of the utility model;

[0018] Figure 3 It is a front view sectional structure schematic diagram of the outer ring of the utility model;

[0019] Figure 4 It is a left sectional structure schematic diagram of the outer ring of the utility model;

[0020] Figure 5 It is a front view structure schematic diagram of the movable block of the utility model;

[0021] Figure 6 It is a front view sectional structure schematic diagram of the fixed block of the utility model.

[0022] In the drawing: 1, outer ring; 2, retainer; 3, ball; 4, inner ring; 5, connecting block; 6, movable block; 7, clamping bead; 8, connecting spring; 9, cavity; 10, oil outlet hole; 11, oil inlet hole; 12, rubber plug; 13, fixed block; 14, clamping block; 15, wedge-shaped block; 16, reset spring; 17, pressing block; 18, sealing rubber ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figure 1 and Figure 2 The utility model provides a technical scheme: a bearing capable of preventing seal ring from falling off, comprising an outer ring 1 and a sealing rubber ring 18, the inner part of the outer ring 1 is provided with a retainer 2, the middle part of the retainer 2 is provided with a ball 3, the inner side of the retainer 2 is provided with an inner ring 4, and the sealing rubber ring 18 is arranged between the outer ring 1 and the inner ring 4.

[0025] One side of the outer ring 1 is provided with a connecting block 5 through a groove, one side of the connecting block 5 is connected with a movable block 6, the side, away from the connecting block 5, of the movable block 6 is provided with a clamping ball 7, a connecting spring 8 is arranged between the movable block 6 and the groove of the outer ring 1, the movable block 6 is slidingly connected in the groove of the outer ring 1, the movable block 6 and the connecting block 5 are integrated, and one side of the clamping ball 7 is arranged at one side of the sealing rubber ring 18 through the groove of the inner wall of the outer ring 1.

[0026] When the sealing rubber ring 18 is installed, the sealing rubber ring 18 is extruded, and then the edge of the sealing rubber ring 18 is continuously installed between the inner edge of the outer ring 1 and the groove of the outer edge of the inner ring 4, and the movable block 6 is moved to one side by the connecting block 5, and the arc-shaped groove on one side of the movable block 6 is aligned with the clamping ball 7, so that the clamping ball 7 is not blocked and extruded by the movable block 6, and the edge position of the sealing rubber ring 18 can be more conveniently installed in the inner edge groove of the outer ring 1.

[0027] When the sealing rubber ring 18 is installed between the inner ring 4 and the outer ring 1, the connecting block 5 can be released, and the movable block 6 is reversely moved under the reset action of the connecting spring 8, and the arc-shaped groove at the bottom of the movable block 6 is dislocated with the clamping ball 7 when the movable block 6 is reversely moved, so that the movable block 6 extrudes the clamping ball 7, the clamping ball 7 moves to one side of the sealing rubber ring 18, and the sealing rubber ring 18 is extruded, the sealing rubber ring 18 is prevented from falling off from the groove between the inner ring 4 and the outer ring 1, and the overall stability of the sealing rubber ring 18 is enhanced.

[0028] Please refer to Figure 1 , Figure 4 and Figure 5It can be known that, in use, the sealing rubber ring 18 can be installed between the inner ring 4 and the outer ring 1, and then the movable block 6 is extruded to the clamping bead 7, so that the clamping bead 7 extrudes the sealing rubber ring 18 in the groove of the outer ring 1, and the sealing rubber ring 18 is not easy to fall off under the extrusion of the clamping bead 7.

[0029] The inner part of the outer ring 1 is provided with a cavity 9, the inner side of the cavity 9 is connected with an oil outlet hole 10, one side of the cavity 9 is connected with an oil inlet hole 11, the inner part of the oil inlet hole 11 is provided with a rubber plug 12, one side of the rubber plug 12 is connected with a fixed block 13, the inner part of the fixed block 13 is provided with a clamping block 14, one end of the clamping block 14 is inserted into the arc-shaped groove in the inner wall of the oil inlet hole 11, the middle part of the clamping block 14 is provided with a wedge-shaped block 15 through the inclined groove, the two groups of wedge-shaped blocks 15 and the groove of the fixed block 13 are provided with reset springs 16, the top of the two groups of wedge-shaped blocks 15 is provided with a pressing block 17 penetrating through the fixed block 13, and the clamping block 14 and the fixed block 13 constitute a telescopic structure through the groove.

[0030] In specific implementation, when the internal ball 3 needs to be lubricated, the pressing block 17 on one side of the fixed block 13 is extruded to the inner part of the fixed block 13, and at the same time, the pressing block 17 drives the wedge-shaped block 15 to move to the inner part of the fixed block 13, since one end of the wedge-shaped block 15 is an inclined surface structure and the wedge-shaped block 15 is connected to the inclined groove of the clamping block 14, at this time, the wedge-shaped block 15 extrudes the clamping block 14 through the inclined groove, so that the clamping block 14 is retracted into the fixed block 13, and the clamping block 14 is not connected to the arc-shaped groove in the inner wall of the oil inlet hole 11, so that the rubber plug 12 can be pulled out of the oil inlet hole 11 through the fixed block 13, and then the lubricating oil can be injected into the outer ring 1 through the oil inlet hole 11, the lubricating oil flows into the cavity 9 through the oil inlet hole 11, and then flows to the ball 3 through the oil outlet hole 10 in the inner side of the cavity 9, so that the ball 3 in the inner part of the outer ring 1 can be lubricated, and the use effect of the utility model is improved.

[0031] After the oil injection is completed, the rubber plug 12 can be installed into the oil inlet hole 11 through the fixed block 13, and the pressing block 17 is loosened, at this time, the pressing block 17 does not extrude the clamping block 14 through the wedge-shaped block 15, and then the reset spring 16 between the two groups of clamping blocks 14 resets, so that the clamping block 14 moves out of the groove of the fixed block 13 and is connected to the arc-shaped groove in the inner wall of the oil inlet hole 11, so that the rubber plug 12 can be stably installed in the oil inlet hole 11, and dust is prevented from entering the inner part of the outer ring 1 through the oil inlet hole 11.

[0032] Referring to Figure 1 , Figure 3 , Figure 4 and Figure 6It can be known that during use, the pressing block 17 can be extruded according to the use requirement, so that the wedge-shaped block 15 extrudes the clamping block 14 into the fixed block 13, the clamping block 14 is not limited, the rubber plug 12 can be taken out, then the oil hole 11 can be used to add lubricating oil to the inside of the outer ring 1, so that the bearing can be used normally.

[0033] In summary: the utility model can install the ball 3 to the outer ring 1, then install the retainer 2 to the outer ring 1, and make each group of balls 3 butt joint to the through slot of the retainer 2, finally install the inner ring 4 to the middle of the retainer 2, the bearing can work normally through the cooperation of the ball 3, the inner ring 4 and the outer ring 1, which is the use characteristics of the bearing capable of preventing the seal ring from falling off, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0034] 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 recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A bearing capable of preventing the seal ring from falling off, comprising an outer ring (1) and a seal rubber ring (18), characterized in that, The inner part of the outer ring (1) is provided with a retainer (2), the middle part of the retainer (2) is provided with a ball (3), the inner side of the retainer (2) is provided with an inner ring (4), and the sealing rubber ring (18) is arranged between the outer ring (1) and the inner ring (4); One side of the outer ring (1) is provided with a connecting block (5) through a groove, one side of the connecting block (5) is connected with a movable block (6), the side away from the connecting block (5) of the movable block (6) is provided with a clamping ball (7), and the movable block (6) and the groove of the outer ring (1) are provided with a connecting spring (8) therebetween.

2. The bearing of claim 1, wherein: The movable block (6) is slidingly connected in the groove of the outer ring (1), and the movable block (6) and the connecting block (5) are in an integrated structure.

3. The bearing of claim 1, wherein: The inner part of the outer ring (1) is provided with a cavity (9), the inner side of the cavity (9) is connected with an oil outlet hole (10), and one side of the cavity (9) is connected with an oil inlet hole (11).

4. The bearing of claim 3, wherein: The inner part of the oil inlet hole (11) is provided with a rubber plug (12), and one side of the rubber plug (12) is connected with a fixed block (13).

5. The bearing of claim 4, wherein: The inner part of the fixed block (13) is provided with a clamping block (14), and one end of the clamping block (14) is inserted into the arc-shaped groove in the inner wall of the oil inlet hole (11).

6. The bearing of claim 5, wherein: The middle part of the clamping block (14) is provided with a wedge-shaped block (15) through a slope groove, and two groups of the wedge-shaped block (15) and the groove of the fixed block (13) are provided with a reset spring (16) therebetween.

7. The bearing of claim 6, wherein: The top of the two groups of wedge-shaped blocks (15) is provided with a pressing block (17) penetrating through the fixed block (13).

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