Combined circulating water pump bearing sealing ring

Abstract

The utility model discloses a combined sealing ring for a circulating water pump bearing, and relates to the technical field of bearings. Comprising an outer ring, an inner ring and balls, the outer ring and the inner ring are both in a circular ring shape, the outer ring is arranged on the outer side of the inner ring in a sleeving mode, the outer ring is movably connected with the inner ring through the balls, the balls are evenly distributed in an annular array, and second fixing rings are fixedly connected to the upper surface and the lower surface of the inner ring. First fixing rings are fixedly connected to the upper surface and the lower surface of the outer ring, and a rubber air bag is bonded between the outer ring and the inner ring. The outer shell is combined on the outer ring, the outer ring and the inner ring are protected, and after combination is completed, the rubber air bag is inflated through inflation equipment, so that the rubber air bag inflated with sufficient gas is tightly sealed in the outer ring, the inner ring and a gap between the outer ring and the inner ring and a gap between the outer ring and the inner ring and the outer shell, the sealing performance of the gap is improved, and dust, water vapor and other impurities are prevented from entering the sealing ring; and the service life of the bearing sealing ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a combined circulating water pump bearing sealing ring. Background Art

[0002] The bearing seal is the main sealing part in the bearing. It can not only keep the grease in the bearing, but also prevent foreign debris or dust from entering the bearing, which can effectively increase the service life of the bearing. The bearing seal is generally made of an outer steel ring frame and an inner rubber ring glued together. However, since the working conditions of the bearing are generally poor, good dust and water resistance requirements are required to prevent water vapor, dust and other impurities outside the bearing from entering the bearing.

[0003] The existing bearing sealing rings still have the problem of poor sealing when in use, which makes it easy for water vapor, dust and other impurities outside the bearing to enter the bearing, aggravating the wear of the inner and outer ring raceways and ball surfaces of the bearing. At the same time, it is also easy to cause the loss of grease inside the bearing, which deteriorates the lubrication state of the bearing, reduces the service life of the bearing, and increases the cost of using the bearing. Utility Model Content

[0004] The utility model aims to provide a combined circulating water pump bearing sealing ring, which solves the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined circulating water pump bearing sealing ring, comprising an outer ring, an inner ring and balls, the outer ring and the inner ring are both annular, the outer ring is sleeved on the outside of the inner ring, the outer ring is movably connected to the inner ring through balls, a plurality of balls are provided, and the plurality of balls are evenly arranged in a circular array, the upper and lower surfaces of the inner ring are fixedly connected with a fixing ring 2, the upper and lower surfaces of the outer ring are fixedly connected with a fixing ring 1, a rubber airbag is bonded between the outer ring and the inner ring, an air guide tube is fixedly connected to the inner wall of the fixing ring 1, and the air guide tube is communicated with the rubber airbag.

[0006] Preferably, the outer wall of the outer ring is sleeved with an outer shell, and the number of the outer shells is two, and the two outer shells are respectively arranged at the upper and lower ends of the outer ring.

[0007] Preferably, the inner wall of the shell is provided with an annular groove and an accommodating cavity, the accommodating cavity is located on the inner side of the annular groove, the inner wall of the shell is provided with a plurality of card slots, the card slots are connected with the annular groove, the outer wall of the outer ring is fixedly connected with a plurality of card blocks, the number of the card blocks is the same as the number of the card slots, and the card blocks fit with the card slots.

[0008] Preferably, a positioning groove is provided on the outer wall of the shell, a threaded hole 2 is provided on the inner wall of the shell, the threaded hole 2 is connected to the card slot, a threaded hole 1 is provided on the inner wall of the card block, a bolt is threadedly connected to the inner wall of the threaded hole 2, and the outer wall of the bolt is threadedly connected to the inner wall of the threaded hole 1.

[0009] Preferably, a retaining frame is provided on the inner ring.

[0010] Preferably, a threaded hole three is formed on the inner wall of the shell, and one end of the air guide tube away from the rubber airbag extends to the inner side of the threaded hole three, and a dust cap is threadedly connected to the inner wall of the threaded hole three.

[0011] Compared with the related art, the combined circulating water pump bearing seal ring provided by the utility model has the following beneficial effects:

[0012] 1. Assemble the outer shell on the outer ring to protect the outer ring and the inner ring. After the assembly is completed, inflate the rubber airbag through the inflation equipment so that the rubber airbag filled with sufficient gas is tightly sealed in the gap between the outer ring, the inner ring and the outer ring, thereby improving the sealing of the gap, preventing dust, water vapor and other impurities from entering the sealing ring, and prolonging the service life of the bearing sealing ring.

[0013] 2. When assembling the sealing ring, first align the block on the outer ring with the slot on the outer shell, then insert the block into the slot, insert the bolt into the threaded hole 2, and pass the bolt through the threaded hole 2 to thread the threaded hole 1 on the block, so that the outer shell is fixedly installed with the outer ring through the block. The assembly is simple, the disassembly and assembly are convenient, and the inspection and maintenance are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is an exploded view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the rubber airbag of the utility model;

[0017] Figure 4 It is a schematic diagram of the second structure of the fixing ring of the utility model;

[0018] Figure 5 This is a schematic diagram of the outer ring structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the inner ring structure of the utility model;

[0020] Figure 7 This is a schematic diagram of the shell structure of the utility model;

[0021] Figure 8 It is a schematic diagram of the structure of the positioning groove of the utility model.

[0022] In the figure: 1. Outer ring; 2. Inner ring; 3. Fixed ring 1; 4. Fixed ring 2; 5. Rubber airbag; 6. Air guide tube; 7. Cage; 8. Ball; 9. Block; 10. Threaded hole 1; 11. Housing; 12. Slot; 13. Threaded hole 2; 14. Ring groove; 15. Accommodating cavity; 16. Positioning groove; 17. Threaded hole 3; 18. Bolt; 19. Dust cap. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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 of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] See also Figure 1-Figure 8 The utility model provides a technical solution: a combined circulating water pump bearing sealing ring, comprising an outer ring 1, an inner ring 2 and a ball 8, the outer ring 1 and the inner ring 2 are both annular, the outer ring 1 is sleeved on the outside of the inner ring 2, the outer ring 1 is movably connected to the inner ring 2 through the ball 8, a plurality of balls 8 are provided, and the plurality of balls 8 are evenly arranged in a ring array, a retainer 7 is provided on the inner ring 2, the upper and lower surfaces of the inner ring 2 are fixedly connected with a fixing ring 2 4, the upper and lower surfaces of the outer ring 1 are fixedly connected with a fixing ring 1 3, a rubber airbag 5 is bonded between the outer ring 1 and the inner ring 2, an air guide tube 6 is fixedly connected to the inner wall of the fixing ring 1 3, the air guide tube 6 is connected to the rubber airbag 5, and when the outer ring 1 and the inner ring 2 are sleeved together, a radial clearance is formed to provide a rotation space for the ball 8, and the ball 8 is limited by the retainer 7;

[0026] The outer wall of the outer ring 1 is sleeved with a shell 11. There are two shells 11, which are respectively arranged at the upper and lower ends of the outer ring 1. The inner wall of the shell 11 is provided with an annular groove 14 and an accommodating cavity 15. The accommodating cavity 15 is located on the inner side of the annular groove 14. The inner wall of the shell 11 is provided with a plurality of card slots 12, which are connected with the annular groove 14. The outer wall of the outer ring 1 is fixedly connected with a plurality of card blocks 9. The number of card blocks 9 and card slots 12 is the same, and the card blocks 9 match the card slots 12. The accommodating cavity 15 on the inner side of the shell 11 provides an extension space for the rubber airbag 5, and the card blocks 9 provide connection conditions for the shell 11 and the outer ring 1.

[0027] The outer wall of the housing 11 is provided with a positioning groove 16, the inner wall of the housing 11 is provided with a second threaded hole 13, the second threaded hole 13 is connected to the card slot 12, the inner wall of the card block 9 is provided with a first threaded hole 10, the inner wall of the second threaded hole 13 is threadedly connected with a bolt 18, and the outer wall of the bolt 18 is threadedly connected to the inner wall of the first threaded hole 10;

[0028] The inner wall of the housing 11 is provided with a threaded hole 3 17, and one end of the air guide tube 6 away from the rubber airbag 5 extends to the inner side of the threaded hole 3 17. The inner wall of the threaded hole 3 17 is threadedly connected with a dust cap 19, and the dust cap 19 prevents dust from entering the port of the air guide tube 6. The dust cap 19 is installed by cooperating with the threaded hole 3 17 on the housing 11 through the threads of its outer wall, and is easy to disassemble and assemble;

[0029] In this embodiment, when the sealing ring is assembled, the block 9 on the outer ring 1 is aligned with the slot 12 on the shell 11, and the block 9 is inserted into the slot 12 after alignment. The bolt 18 is connected to the threaded hole 13 and passed through the threaded hole 13 to be threadedly connected with the threaded hole 10 on the block 9, so that the shell 11 is fixedly installed with the outer ring 1 through the block 9, thereby protecting the outer ring 1 and the inner ring 2. After the assembly is completed, the accommodating cavity 15 on the inner side of the shell 11 is located on the outer side of the rubber airbag 5 to provide an extension space for it, and then the inflation port of the inflation device is connected to the air guide pipe 6, so that the rubber airbag 5 can be inflated. After a sufficient amount of gas is filled, the rubber airbag 5 is tightly sealed at the gap between the outer ring 1, the inner ring 2 and the outer ring 11, thereby improving the sealing performance at the gap, preventing impurities such as dust and water vapor from entering the interior of the sealing ring, and improving the service life of the bearing sealing ring.

[0030] Working principle: When the sealing ring is assembled, the block 9 on the outer ring 1 is aligned with the slot 12 on the outer shell 11. After alignment, the block 9 is inserted into the slot 12. By connecting the bolt 18 to the threaded hole 2 13 and passing through the threaded hole 2 13 to be threadedly connected with the threaded hole 10 on the block 9, the outer shell 11 is fixedly installed with the outer ring 1 through the block 9 to protect the outer ring 1 and the inner ring 2. After the assembly is completed, the accommodating cavity 15 on the inner side of the outer shell 11 is located on the outer side of the rubber airbag 5 to provide an extension space for it. Then the inflation port of the inflation device is connected to the air guide pipe 6 to inflate the rubber airbag 5. After a sufficient amount of gas is filled, the rubber airbag 5 is sealed tightly in the gap between the outer ring 1, the inner ring 2 and the outer shell 11, thereby improving the sealing performance at the gap, preventing impurities such as dust and water vapor from entering the sealing ring, and improving the service life of the bearing sealing ring.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined circulating water pump bearing seal ring, comprising an outer ring (1), an inner ring (2) and a ball (8), characterized in that: The outer ring (1) and the inner ring (2) are both annular, the outer ring (1) being sleeved on the outer side of the inner ring (2), the outer ring (1) being movably connected to the inner ring (2) via a ball (8), a plurality of balls (8) being provided, and the plurality of balls (8) being evenly arranged in a ring array, the upper and lower surfaces of the inner ring (2) being fixedly connected to a second fixing ring (4), the upper and lower surfaces of the outer ring (1) being fixedly connected to a first fixing ring (3), a rubber airbag (5) being bonded between the outer ring (1) and the inner ring (2), an air guide tube (6) being fixedly connected to the inner wall of the first fixing ring (3), and the air guide tube (6) being connected to the rubber airbag (5).

2. The combined circulating water pump bearing seal ring according to claim 1, characterized in that: The outer wall of the outer ring (1) is sleeved with an outer shell (11), and the number of the outer shells (11) is two, and the two outer shells (11) are respectively arranged at the upper and lower ends of the outer ring (1).

3. The combined circulating water pump bearing seal ring according to claim 2 is characterized in that: The inner wall of the shell (11) is provided with an annular groove (14) and an accommodating cavity (15), the accommodating cavity (15) being located on the inner side of the annular groove (14), the inner wall of the shell (11) is provided with a plurality of clamping grooves (12), the clamping grooves (12) being connected to the annular groove (14), and the outer wall of the outer ring (1) is fixedly connected with a plurality of clamping blocks (9), the number of the clamping blocks (9) and the number of the clamping grooves (12) being the same, and the clamping blocks (9) and the clamping grooves (12) being matched.

4. The combined circulating water pump bearing seal ring according to claim 3 is characterized in that: The outer wall of the housing (11) is provided with a positioning groove (16), the inner wall of the housing (11) is provided with a second threaded hole (13), the second threaded hole (13) is communicated with the clamping groove (12), the inner wall of the clamping block (9) is provided with a first threaded hole (10), the inner wall of the second threaded hole (13) is threadedly connected with a bolt (18), and the outer wall of the bolt (18) is threadedly connected to the inner wall of the first threaded hole (10).

5. The combined circulating water pump bearing seal ring according to claim 1, characterized in that: A retaining frame (7) is provided on the inner ring (2).

6. The combined circulating water pump bearing seal ring according to claim 2, characterized in that: The inner wall of the housing (11) is provided with a threaded hole three (17), one end of the air guide tube (6) away from the rubber airbag (5) extends to the inner side of the threaded hole three (17), and the inner wall of the threaded hole three (17) is threadedly connected with a dust cap (19).

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