High-performance hub bearing

Abstract

The utility model discloses a high-performance hub bearing which comprises an outer ring and a flange fixedly mounted on the side surface of the outer ring, a dustproof mechanism is arranged above the inner side of the outer ring and comprises an inner gasket, an upper sealing gasket and an outer gasket, the cross section of the inner gasket and the cross section of the outer gasket are annular, and the diameter of the middle of the inner gasket, the diameter of the middle of the upper sealing gasket and the diameter of the middle of the outer gasket are consistent with the diameter of the inner ring; an oil injection mechanism is arranged in the outer ring and comprises an oil injection pipe, an oil outlet and an oil injection port, and the oil injection port is fixedly connected to the left side of the outer ring. According to the high-performance hub bearing, the abraded upper sealing gasket is convenient to replace, the service life of the hub bearing is prolonged, hydraulic oil is injected into the oil injection pipe from the oil injection opening, the hydraulic oil can flow onto the balls, the lubricating effect is achieved, the service life of the hub bearing is further prolonged, the outer ring can be cooled, and the service life of the hub bearing is prolonged. And the service life of the hub bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub bearings, in particular to a high-performance wheel hub bearing. Background Art

[0002] The wheel hub bearing is one of the important parts of the automobile chassis (suspension). It is located in the wheel hub and its main function is to bear the load and provide precise guidance for the rotation of the wheel hub. It must bear both axial load and radial load. It is an indispensable part in the driving process of the automobile. The traditional automobile wheel bearing is composed of two sets of tapered roller bearings or ball bearings. However, this structure is difficult to assemble in the automobile factory, with high cost and poor reliability. In order to improve these problems, the wheel hub bearing unit has been developed. It combines two sets of bearings into one, with the advantages of good assembly performance, no need for clearance adjustment, light weight, compact structure, large load capacity, etc. At the same time, this bearing is a sealed bearing and can be pre-loaded with grease, so the external wheel hub seal is omitted and maintenance is avoided. It has been widely used in cars and gradually expanded in trucks.

[0003] With reference to Chinese patent authorization announcement number CN215720203U, the authorization announcement date is 2022.02.01, and a wheel hub bearing is disclosed. The utility model installs the connecting cover on one side of the inner ring, and the sealing ring can prevent dust from entering the interior of the bearing. The first sealing gasket and the second sealing gasket can improve the sealing performance of the bearing, prevent dust from entering the interior of the bearing, and increase the service life of the bearing; after placing one end of the housing in a suitable position, by placing a gasket on the upper end of the mounting ring, and then installing the bearing in a suitable position through fixing bolts, the gasket can reduce damage to the mounting ring and avoid causing greater wear on the bearing.

[0004] However, during the operation of the hub bearing, the outer ring and the inner ring will generate heat due to friction, and the second seal will become soft due to the heat, and its sealing performance will be reduced. Dust can also easily enter the middle of the bearing from the second seal, resulting in a shortened bearing life.

[0005] Therefore, we propose a high-performance wheel hub bearing to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-performance wheel hub bearing to solve the problem raised in the above-mentioned background technology that during the operation of the wheel hub bearing, the outer ring and the inner ring will generate heat through friction, the second sealing gasket will soften due to the heat, its sealing performance will be reduced, and dust will easily enter the middle of the bearing through the second sealing gasket, resulting in a shortened bearing life.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-performance hub bearing, comprising: an outer ring and a flange fixedly mounted on the side of the outer ring;

[0008] Also includes:

[0009] A dustproof mechanism is arranged on the inner upper side of the outer ring, wherein the dustproof mechanism comprises an inner gasket, an upper sealing gasket and an outer gasket, wherein the cross-sections of the inner gasket and the outer gasket are circular, and the diameters between the inner gasket, the upper sealing gasket and the outer gasket are consistent with the diameter of the inner ring;

[0010] An oil filling mechanism is arranged inside the outer ring, wherein the oil filling mechanism comprises an oil filling pipe, an oil outlet and an oil filling port, the oil filling port is fixedly connected to the left side of the outer ring, and the inner side of the oil filling port is connected to the oil filling pipe.

[0011] Preferably, an inner ring is arranged inside the outer ring, and the outer ring and the inner ring are connected by ball rolling, and the balls are distributed in an array.

[0012] Preferably, the lower side of the inner gasket fits tightly with the upper side of the inner ring, the upper side of the inner gasket fits tightly with the lower side of the upper sealing gasket, and the upper side of the upper sealing gasket fits tightly with the lower side of the outer gasket.

[0013] Preferably, the inner gasket, upper sealing gasket and outer gasket are all provided with screw holes, and the screw holes are distributed in an array, and the inner gasket, upper sealing gasket and outer gasket are all provided with screw holes corresponding to the screws one by one, and the lower side of the upper sealing gasket is located in the middle of the outer ring and the inner ring.

[0014] Preferably, the inner ring is threadably connected to the screws, and the screws are distributed in an array.

[0015] Preferably, a lower sealing ring is provided at the lower middle side of the outer ring and the inner ring, and an oil filling pipe, an oil outlet and a cooling pipe are provided inside the outer ring, and the oil filling pipe is fixedly connected to the oil outlet, and the oil outlets are distributed in an array.

[0016] Preferably, the upper right side of the cooling pipe is fixedly connected to the water inlet, and the lower right side of the cooling pipe is fixedly connected to the water outlet pipe, and the cooling pipe is serpentine.

[0017] Preferably, a one-way valve is provided inside the water outlet pipe, and the right end of the water outlet pipe is fixedly connected to the water tank, and the water tank is provided on the flange on the right side of the outer ring, and an oil filling bottle is provided on the flange on the left side of the outer ring.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the high-performance wheel hub bearing is more convenient to replace the worn upper sealing gasket, which is beneficial to prolonging the service life of the wheel hub bearing; by injecting hydraulic oil into the oil filling pipe from the oil filling port, the hydraulic oil will flow to the ball bearing to play a lubricating role, further prolonging the service life of the wheel hub bearing; the outer ring can also be cooled, which is beneficial to prolonging the service life of the wheel hub bearing;

[0019] 1. An inner gasket, an outer gasket and screws are provided. By clamping the upper gasket with the inner gasket and the outer gasket, the lower end of the upper gasket can always be located between the outer ring and the inner ring. After removing all the screws, it is also convenient to replace the upper gasket, which is beneficial to prolonging the service life of the wheel hub bearing;

[0020] 2. An oil filling pipe, an oil outlet and an oil filling port are provided. By injecting hydraulic oil into the oil filling pipe from the oil filling port, the injected hydraulic oil will evenly flow from the oil outlet to the ball bearings to play a lubricating role, further extending the service life of the wheel hub bearing;

[0021] 3. A cooling pipe, a water inlet and a water outlet pipe are provided. Water is added into the water inlet, and then the water passes through the cooling pipe and is discharged from the water outlet pipe into the water tank. The water will take away the heat generated during the operation of the wheel hub bearing, thereby reducing the temperature of the wheel hub bearing and helping to extend the service life of the wheel hub bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front view cutaway structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the utility model in a top view and cutaway structure;

[0026] Figure 5 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1. Outer ring; 2. Flange; 3. Inner ring; 4. Inner gasket; 5. Upper sealing gasket; 6. Outer gasket; 7. Screws; 8. Lower sealing ring; 9. Ball; 10. Oil filling pipe; 11. Oil outlet; 12. Oil filling port; 13. Cooling pipe; 14. Water inlet; 15. Water outlet pipe; 16. One-way valve; 17. Water tank; 18. Oil filling bottle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5The utility model provides a technical solution: a high-performance wheel hub bearing, comprising: an outer ring 1, a flange 2, an inner ring 3, an inner gasket 4, an upper sealing gasket 5, an outer gasket 6, a screw 7, a lower sealing ring 8, a ball 9, an oil filling pipe 10, an oil outlet 11, an oil filling port 12, a cooling pipe 13, a water inlet 14, a water outlet pipe 15, a one-way valve 16, a water tank 17 and an oil filling bottle 18;

[0030] When using this high performance wheel hub bearing, Figure 1 and Figure 2 As shown, the inner side of the outer ring 1 is provided with a groove, and the outer side of the inner ring 3 is provided with a groove. First, hold the outer ring 1 with your hand, and drag the lower side of the outer ring 1 with your palm, and then place the inner ring 3 inside the outer ring 1, so that the groove inside the outer ring 1 is aligned with the groove outside the inner ring 3, and then add the balls 9 into the outer ring 1 and the inner ring 3 from the larger gap opposite to the joint of the outer ring 1 and the inner ring 3, and then shake the outer ring 1 and the inner ring 3, so that the outer ring 1 and the inner ring 3 are connected by rolling through the balls 9;

[0031] like Figure 2 and Figure 5 As shown, first place the inner gasket 4 on the upper side of the inner ring 3, and align the screw holes in the inner gasket 4 with the screw holes in the inner ring 3, then place the upper sealing gasket 5 on the upper side of the inner gasket 4, and align the screw holes in the upper sealing gasket 5 with the screw holes in the inner gasket 4, finally place the outer gasket 6 on the upper side of the upper sealing gasket 5, and align the screw holes in the outer gasket 6 with the screw holes in the upper sealing gasket 5, then screw the screws 7 into the screw holes in sequence, at this time, the inner gasket 4, the upper sealing gasket 5 and the outer gasket 6 are fixed above the inner ring 3, the function of the inner gasket 4 is to prevent the screw 7 from pressing the outer gasket 6 too much, so that the upper sealing gasket 5 is compressed and deformed, The outer side of the upper sealing gasket 5 is caused to be warped upward, so that dust and other impurities enter the outer ring 1 and the inner ring 3 from above, affecting the service life of the hub bearing. Finally, the lower sealing ring 8 is inserted below the inner side of the outer ring 1 and the inner ring 3. The inner side of the lower sealing ring 8 is connected with the outer side of the inner ring 3, and the outer side of the lower sealing ring 8 is not in close contact with the inner side of the outer ring 1. The wear of the upper sealing gasket 5 and the lower sealing ring 8 during the operation of the hub bearing is almost negligible. In addition, the upper sealing gasket 5 is also relatively convenient to replace. The upper sealing gasket 5 can be removed from the upper side of the inner ring 3 by unscrewing the screw 7 and replaced with a new upper sealing gasket 5.

[0032] like Figure 2 and Figure 4As shown, the wheel hub bearing will generate a large pressure on the ball 9 during operation, and it is necessary to regularly add oil to the ball 9, open the upper side plug of the oil filling port 12, pick up the oil filling bottle 18, make the top of the oil filling bottle 18 face downward, and insert the top of the oil filling bottle 18 into the oil filling port 12, and then squeeze the oil filling bottle 18, the hydraulic oil in the oil filling bottle 18 will be squeezed into the oil filling port 12, and the hydraulic oil will flow into the oil filling pipe 10 along the oil filling port 12, and the inner side of the oil filling pipe 10 is fixedly connected with an oil outlet 11, the oil filling pipe 10 and the oil outlet 11 are both opened inside the outer ring 1, and the oil outlets 11 are distributed in an array, and the hydraulic oil will flow from the oil outlet 11 along the inner wall of the outer ring 1 to the middle of the outer ring 1 and the inner ring 3, and finally be coated on the surface of the running ball 9, which plays a role in lubricating the ball 9, and the wear degree of the ball 9 with the hydraulic oil attached to the surface will be greatly reduced, which plays a role in extending the service life of the wheel hub bearing;

[0033] like Figure 2 and Figure 4 As shown, heat will also be generated during operation, and the wheel hub bearing needs to be cooled down regularly to prevent the wheel hub bearing from generating heat due to friction, which will cause the temperature of the outer ring 1 and the inner ring 3 to rise, thereby causing the upper sealing gasket 5 and the lower sealing ring 8 to soften due to heat, causing dust to enter the middle of the outer ring 1 and the inner ring 3. Open the plug on the upper side of the water inlet 14, and then add water from the water inlet 14. The water will flow into the cooling pipe 13 along the water inlet 14, and then flow out from the water outlet pipe 15 and be stored in the water tank 17. The water will carry away the heat on the outer ring 1, lowering its temperature and preventing the upper sealing gasket 5 and the lower sealing ring 8 from softening. In addition, a one-way valve 16 is provided inside the water outlet pipe 15 to prevent high-temperature water from flowing back, thereby further extending the service life of the wheel hub bearing.

[0034] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-performance wheel hub bearing, comprising: An outer ring (1) and a flange (2) fixedly mounted on a side of the outer ring (1); It is characterized by further comprising: A dustproof mechanism is arranged on the upper inner side of the outer ring (1), wherein the dustproof mechanism comprises an inner gasket (4), an upper sealing gasket (5) and an outer gasket (6), wherein the cross-sections of the inner gasket (4) and the outer gasket (6) are circular, and the diameters between the inner gasket (4), the upper sealing gasket (5) and the outer gasket (6) are consistent with the diameter of the inner ring (3); An oil injection mechanism is arranged inside the outer ring (1), wherein the oil injection mechanism comprises an oil injection pipe (10), an oil outlet (11) and an oil injection port (12); the oil injection port (12) is fixedly connected to the left side of the outer ring (1), and the inner side of the oil injection port (12) is connected to the oil injection pipe (10).

2. A high performance hub bearing according to claim 1, characterized in that: An inner ring (3) is arranged on the inner side of the outer ring (1), and the outer ring (1) and the inner ring (3) are rollingly connected via balls (9), and the balls (9) are distributed in an array.

3. A high performance wheel hub bearing according to claim 1, characterized in that: The lower side of the inner gasket (4) is tightly fitted with the upper side of the inner ring (3), the upper side of the inner gasket (4) is tightly fitted with the lower side of the upper sealing gasket (5), and the upper side of the upper sealing gasket (5) is tightly fitted with the lower side of the outer gasket (6).

4. A high performance wheel hub bearing according to claim 3, characterized in that: The inner gasket (4), the upper sealing gasket (5) and the outer gasket (6) are all provided with screw holes, and the screw holes are distributed in an array. The inner gasket (4), the upper sealing gasket (5) and the outer gasket (6) are all provided with screw holes corresponding to the screws (7) one by one, and the lower side of the upper sealing gasket (5) is located in the middle of the outer ring (1) and the inner ring (3).

5. A high performance hub bearing according to claim 4, characterized in that: The inner ring (3) is threadedly connected to the screws (7), and the screws (7) are distributed in an array.

6. A high performance hub bearing according to claim 2, characterized in that: A lower sealing ring (8) is provided at the lower middle side of the outer ring (1) and the inner ring (3), and an oil filling pipe (10), an oil outlet (11) and a cooling pipe (13) are provided inside the outer ring (1), and the oil filling pipe (10) is fixedly connected to the oil outlet (11), and the oil outlets (11) are distributed in an array.

7. A high performance wheel hub bearing according to claim 6, characterized in that: The upper right side of the cooling pipe (13) is fixedly connected to the water inlet (14), and the lower right side of the cooling pipe (13) is fixedly connected to the water outlet pipe (15), and the cooling pipe (13) is in a serpentine shape.

8. A high performance wheel hub bearing according to claim 7, characterized in that: A one-way valve (16) is arranged inside the water outlet pipe (15), and the right end of the water outlet pipe (15) is fixedly connected to a water tank (17), and the water tank (17) is arranged on a flange (2) on the right side of the outer ring (1), and an oil filling bottle (18) is arranged on the flange (2) on the left side of the outer ring (1).

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