Protection structure of brake
By setting drainage holes and oil coupling covers on the wheel hub, wheel edge reduction shell and brake drum, the problem of lubricating oil entering the brake after the oil seal is damaged is solved, and the lubricating oil drainage is achieved, improving the safety and structure of the vehicle applicability.
Patent Information
- Application Number
- CN202420368461.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-02-28
AI Technical Summary
After the oil seal is damaged, lubricating oil enters the brake inside, causing the brake torque to drop and the wheels to slip, affecting the safety of the vehicle.
A protective structure including the wheel hub, the wheel edge reducer and the brake drum was designed. By setting drainage holes on the wheel hub, the wheel edge reducer and the brake drum, combined with the design of the oil coupling cover, the lubricating oil drainage is achieved to prevent the When the oil seal fails, lubricating oil enters the brake.
It effectively prevents lubricating oil from entering the brake, avoids brake torque drop and wheel slippage, improves the safety of the vehicle, and has a simple structure and strong applicability. Only the oil coupling cover and processing drainage holes are required to achieve protection.
Smart Images
Figure CN222315736U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle axles, in particular to a brake protection structure, which is mainly used for matching axle assemblies of drum brakes and wedge brakes. Background Art
[0002] The oil seal is a wearing part. If the oil seal installed on the inner side of the wheel hub on the axle is damaged and not replaced in time, the lubricating oil in the inner cavity of the wheel hub will enter the brake through the damaged oil seal, causing problems such as reduced braking torque and wheel slippage, seriously affecting the safety of the entire vehicle operation. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a protective structure for a brake.
[0004] The technical solution provided by the utility model is: a brake protection structure, including a wheel hub, a wheel side reduction shell, and a brake drum, the wheel hub rotates relative to the bridge housing through a bearing, the brake is fixed on the bridge housing, the wheel side reduction shell, the brake drum and the wheel hub are connected together, and the utility model is special in that the wheel hub, the wheel side reduction shell and the brake drum are respectively provided with a wheel hub drainage hole, a wheel side reduction shell drainage hole and a brake drum drainage hole, one end of the wheel hub drainage hole partially overlaps with the oil receiving cover on the wheel hub, the other end of the wheel hub drainage hole partially overlaps with one end of the wheel side reduction shell drainage hole, and the other end of the wheel side reduction shell drainage hole partially overlaps with the brake drum drainage hole, and they are interconnected.
[0005] Furthermore, the first oil seal, the second oil seal and the oil receiving cover are press-fitted on the wheel hub by interference fit, and the first oil seal, the second oil seal and the oil receiving cover rotate together with the wheel hub.
[0006] Furthermore, the wheel hub rotates relative to the bridge housing via the first bearing and the second bearing.
[0007] Furthermore, the brake is fixed to the bridge housing by bolts.
[0008] Furthermore, the wheel side reduction housing and the brake drum are connected to the wheel hub via wheel bolts and wheel nuts.
[0009] The beneficial effects of the utility model are as follows: 1. The lubricating oil is drained to protect the safety of the brake. When the oil seal installed on the inner side of the wheel hub fails, the lubricating oil in the wheel hub cavity will be drained to the outside of the axle through the oil receiving cover, drainage holes, etc. in sequence to protect the safety of the brake. 2. The structure is simple and the applicability is strong. On the basis of the original structure, it only needs to install the oil receiving cover and process the drainage holes to achieve the protection of the brake. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1It is a structural schematic diagram of the utility model.
[0011] In the figure: 1 brake, 2 bolts, 3 axle housing, 4 wheel hub, 5 wheel side reduction housing, 6 brake drum, 7 wheel bolts, 8 wheel nuts, 9 first bearing, 10 second bearing, 11 first oil seal, 12 second oil seal, 13 oil collecting cover, 14 wheel hub drainage hole, 15 wheel side reduction housing drainage hole, 16 brake drum drainage hole. DETAILED DESCRIPTION
[0012] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings.
[0013] like Figure 1 As shown, a brake protection structure includes a wheel hub 4, a wheel side reduction shell 5, and a brake drum 6. The wheel hub 4 rotates relative to the bridge housing 3 through a first bearing 9 and a second bearing 10, and the brake 1 is fixed to the bridge housing 3 through a bolt 2; the wheel side reduction shell 5 and the brake drum 6 are connected to the wheel hub 4 through wheel bolts 7 and wheel nuts 8, and a first oil seal 11, a second oil seal 12, and an oil receiving cover 13 are press-fitted on the wheel hub 4 by interference fit, and rotate with the wheel hub 4; the wheel hub 4, the wheel side reduction shell 5, and the brake drum 6 are respectively processed with a wheel hub drainage hole 14, a wheel side reduction shell drainage hole 15, and a brake drum drainage hole 16, one end of the wheel hub drainage hole 14 partially overlaps with the oil receiving cover 13 on the wheel hub 4, the other end of the wheel hub drainage hole 14 partially overlaps with one end of the wheel side reduction shell drainage hole 15, and the other end of the wheel side reduction shell drainage hole 15 partially overlaps with the brake drum drainage hole 16, and they are connected.
[0014] The utility model provides a brake protection structure. When the oil seals 11 and 12 fail, the lubricating oil in the cavity of the wheel hub 4 will be collected by the oil receiving cover 13 in turn, and then drained to the outside of the axle through the wheel hub drainage hole 14, the wheel side shell drainage hole 15, and the brake drum drainage hole 16, thereby avoiding the problems of wheel slippage and reduction of braking torque caused by contamination of the brake 1, and greatly improving the safety of vehicle operation.
[0015] It should be understood that the technical features not elaborated in this specification belong to the prior art. Although the implementation methods of the utility model patent are described above in conjunction with the drawings, the utility model is not limited to the above specific implementation methods, which are only illustrative and not restrictive. Ordinary technicians in this field can make more forms under the enlightenment of the utility model without departing from the scope of protection of the purpose of the utility model and the claims, which are all within the protection scope of the utility model.
Claims
1. A brake protection structure, comprising a wheel hub (4), a wheel side reduction shell (5), and a brake drum (6), wherein the wheel hub (4) rotates relative to a bridge housing (3) via a bearing, a brake (1) is fixed on the bridge housing (3), and the wheel side reduction shell (5), the brake drum (6) and the wheel hub (4) are connected together, characterized in that: The wheel hub (4), the wheel side shell reduction (5) and the brake drum (6) are respectively provided with a wheel hub drainage hole (14), a wheel side shell reduction drainage hole (15) and a brake drum drainage hole (16); one end of the wheel hub drainage hole (14) partially overlaps with the oil receiving cover (13) on the wheel hub (4); the other end of the wheel hub drainage hole (14) partially overlaps with one end of the wheel side shell reduction drainage hole (15); the other end of the wheel side shell reduction drainage hole (15) partially overlaps with the brake drum drainage hole (16), and the two are interconnected.
2. A brake protection structure according to claim 1, characterized in that: A first oil seal (11), a second oil seal (12), and an oil receiving cover (13) are press-fitted onto the wheel hub (4) by interference fit, and the first oil seal (11), the second oil seal (12), and the oil receiving cover (13) rotate together with the wheel hub (4).
3. A brake protection structure according to claim 1, characterized in that: The wheel hub (4) rotates relative to the bridge housing (3) via a first bearing (9) and a second bearing (10).
4. A brake protection structure according to claim 1, characterized in that: The brake (1) is fixed to the bridge housing (3) by means of bolts (2).
5. A brake protection structure according to claim 1, characterized in that: The wheel side reduction housing (5) and the brake drum (6) are connected to the wheel hub (4) via wheel bolts (7) and wheel nuts (8).