Novel floating sealing ring

Abstract

The utility model relates to a novel floating sealing ring which comprises a floating oil seal seat ring and a floating oil seal, a shaft head is provided with a wet brake, the floating oil seal seat ring is arranged between the wet brake and a hub, the floating oil seal seat ring comprises an inner floating oil seal seat ring and an outer floating oil seal seat ring, the inner floating oil seal seat ring is arranged on the shaft head, and the outer floating oil seal seat ring is arranged on the shaft head. The outer floating oil seal seat ring is arranged on the hub, and the floating oil seal is arranged between the inner floating oil seal seat ring and the outer floating oil seal seat ring; a split type floating oil seal seat ring and a floating oil seal structure are arranged between a wet brake and a hub, so that the pressure resistance of a sealing assembly is effectively improved, and meanwhile, an O-shaped sealing ring structure is arranged between the floating oil seal seat ring and an accessory of the floating oil seal seat ring; the problems that a hub oil seal of a traditional structure is prone to damage and poor in sealing performance under the high-oil-pressure working environment of a wet brake are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of axle wheel side seals, in particular to a new type of floating seal ring. Background Art

[0002] Due to the stable braking torque output and low friction plate braking temperature of wet brakes, they are gradually popularized in the field of mine cars; among them, when the active lubrication type wet brake operates, there is a large amount of lubricating oil circulating inside, resulting in a strong oil pressure, so more stringent requirements are put forward for the sealing performance of the brake.

[0003] The sealing structures between the conventional wet brake and the wheel hub mainly include two types: The first prior art is to use a conventional oil seal, which does not have good pressure resistance and is extremely prone to leakage under the working conditions of high pressure, thus seriously affecting the reliability of the wheel side seal; The second prior art is to use a conventional floating seal ring. Although this structure can meet the sealing use requirements of the wet brake, its integrated design of the spacer ring and the floating oil seal seat ring poses a more stringent test for the processing and manufacturing of parts. At the same time, the assembly and maintenance are extremely inconvenient, seriously restricting the application and promotion of wet brakes in the wheel side seal products of mining vehicle axles. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a new type of floating seal ring in view of the deficiencies of the prior art.

[0005] The utility model is realized by adopting the following technical scheme:

[0006] A new type of floating seal ring, including a floating oil seal seat ring and a floating oil seal. There is a wet brake on the axle head. The floating oil seal seat ring is arranged between the wet brake and the wheel hub. The floating oil seal seat ring includes an inner floating oil seal seat ring and an outer floating oil seal seat ring. The inner floating oil seal seat ring is connected to the axle head, the outer floating oil seal seat ring is connected to the wheel hub, and the floating oil seal is arranged between the inner floating oil seal seat ring and the outer floating oil seal seat ring.

[0007] Further, the inner floating oil seal seat ring is connected to the axle head by interference fit and axially fixed by a shoulder provided on the axle head.

[0008] Further, the outer floating oil seal seat ring is connected to the wheel hub by interference fit and axially fixed by a tapered roller bearing.

[0009] Further, the tapered roller bearing and the axle head are axially fixed by a spacer ring.

[0010] Further, a sealing ring is arranged between the inner floating oil seal seat ring and the axle head.

[0011] Furthermore, a sealing ring is provided between the outer floating oil seal seat ring and the hub.

[0012] Furthermore, the sealing ring is an O-ring.

[0013] Furthermore, the axle head includes a wet brake. A floating oil seal seat ring is provided between the wet brake and the hub. The floating oil seal seat ring includes an inner floating oil seal seat ring and an outer floating oil seal seat ring. The inner floating oil seal seat ring is provided on the axle head, and the outer floating oil seal seat ring is provided on the hub. O-rings are provided between the axle head and the inner floating oil seal seat ring, and between the hub and the outer floating oil seal seat ring. A floating oil seal is provided between the inner floating oil seal seat ring and the outer floating oil seal seat ring.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] 1. Strong pressure resistance and good sealing performance: By setting a split floating oil seal seat ring and a floating oil seal structure between the wet brake and the hub, the pressure resistance of the sealing component is effectively improved. At the same time, an O-ring structure is provided between the floating oil seal seat ring and its mating parts, solving the problems that the hub oil seal of the traditional structure is easily damaged and has poor sealing performance in the high oil pressure working environment of the wet brake.

[0016] 2. Simple product structure, good processing and assembly processability: By designing the floating oil seal seat ring and the floating oil seal in a split manner, the processability and assembly convenience of the product are effectively improved. At the same time, the product maintenance convenience during use is also more excellent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of A in

[0019] Figure 3 is a schematic structural diagram of the floating oil seal seat ring of the utility model;

[0020] Figure 4 is a schematic structural diagram of the prior art one;

[0021] Figure 5 is a schematic structural diagram of the prior art two.

[0022] REFERENCE SIGNS

[0023] 1. Floating oil seal seat ring; 2. Floating oil seal; 3. Sealing ring; 4. Hub; 5. Axle head; 6. Spacer ring; 7. Tapered roller bearing; 8. Wet brake; 11. Outer floating oil seal seat ring; 12. Inner floating oil seal seat ring. Detailed implementation mode

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 - 3 shown, a new type of floating seal ring includes a floating oil seal seat ring 1 and a floating oil seal 2. A wet brake 8 is provided on the axle head 5. The floating oil seal seat ring 1 is arranged between the wet brake 8 and the hub 4. The floating oil seal seat ring 1 includes an inner floating oil seal seat ring 12 and an outer floating oil seal seat ring 11. The inner floating oil seal seat ring 12 is connected to the axle head 5, and the outer floating oil seal seat ring 11 is connected to the hub 4. The floating oil seal 2 is arranged between the inner floating oil seal seat ring 12 and the outer floating oil seal seat ring 11.

[0026] By adopting a split design for the floating oil seal seat ring 1 and the floating oil seal 2, the processability and assembly convenience of the product are effectively improved, and the product maintenance convenience during use is also more excellent.

[0027] The inner floating oil seal seat ring 12 is connected to the axle head 5 by interference fit and axially fixed by a shoulder provided on the axle head 5.

[0028] The outer floating oil seal seat ring 11 is connected to the hub 4 by interference fit and axially fixed by a tapered roller bearing 7.

[0029] The tapered roller bearing 7 and the axle head 5 are axially fixed by a spacer ring 6.

[0030] A sealing ring 3 is provided between the inner floating oil seal seat ring 12 and the axle head 5.

[0031] A sealing ring 3 is provided between the outer floating oil seal seat ring 11 and the hub 4.

[0032] The sealing ring 3 is an O-ring.

[0033] Sealing rings 3 are provided between the inner floating oil seal seat ring 12 and the shaft head 5, and between the outer floating oil seal seat ring 11 and the wheel hub 4, which can prevent the lubricating oil in the wet brake 8 from entering the wheel side, playing a sealing role and solving the problems that the traditional hub oil seal in the high-oil-pressure working environment of the wet brake is easily damaged and has poor sealing performance.

Claims

1. A new floating seal ring, characterized in that: The invention comprises a floating oil seal seat ring (1) and a floating oil seal (2); a shaft head (5) is provided with a wet brake (8); the floating oil seal seat ring (1) is arranged between the wet brake (8) and a wheel hub (4); the floating oil seal seat ring (1) comprises an inner floating oil seal seat ring (12) and an outer floating oil seal seat ring (11); the inner floating oil seal seat ring (12) is connected to the shaft head (5); the outer floating oil seal seat ring (11) is connected to the wheel hub (4); and the floating oil seal (2) is arranged between the inner floating oil seal seat ring (12) and the outer floating oil seal seat ring (11).

2. The novel floating seal ring according to claim 1 is characterized in that: The inner floating oil seal seat ring (12) is connected to the shaft head (5) by interference fit and is axially fixed by a shoulder provided on the shaft head (5).

3. The novel floating seal ring according to claim 2 is characterized in that: The outer floating oil seal seat ring (11) is connected to the wheel hub (4) by interference fit and is axially fixed by a tapered roller bearing (7).

4. The novel floating seal ring according to claim 3 is characterized in that: The tapered roller bearing (7) and the shaft head (5) are axially fixed via a spacer ring (6).

5. The novel floating seal ring according to claim 4 is characterized in that: A sealing ring (3) is provided between the inner floating oil seal seat ring (12) and the shaft head (5).

6. The novel floating seal ring according to claim 5 is characterized in that: A sealing ring (3) is provided between the outer floating oil seal seat ring (11) and the wheel hub (4).

7. The novel floating seal ring according to claim 5 or 6, characterized in that: The sealing ring (3) is an O-type sealing ring.

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