Brake drum core adopting sealing protection

Abstract

The utility model belongs to the technical field of brake drums, and particularly discloses a brake drum core adopting sealing protection, which comprises a brake drum, mounting bolts are fixed on one side of the brake drum, a first sealing ring is arranged on the brake drum between the mounting bolts, and an oil storage box is fixed on the inner side wall of the brake drum. A plurality of oil conveying pipes are connected to the periphery of the oil storage box, sealing felts are arranged at the ends of the oil conveying pipes and located on the brake drum, sealing bearings are arranged on the inner sides of the sealing felts, the sealing bearings are clamped on clamping rings, the clamping rings are fixed to an installation plate, and third sealing rings are arranged on the two sides of the installation plate. A plurality of second sealing rings are arranged beside each third sealing ring, the sealing felt is attached to the mounting plate, a large amount of water and dust are prevented from entering the brake drum, meanwhile, the water and dust are further prevented from entering the brake drum through the arranged sealing bearing, and the oil storage box is matched with the oil conveying pipe to supplement lost lubricating oil for the sealing felt.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drums, and specifically relates to a brake drum core with sealed protection. Background Art

[0002] Drum brakes have been applied to automobiles for nearly a century. Due to their reliability and powerful braking force, drum brakes are still configured on many vehicle models today (mostly used on the rear wheels). It is fixed to the tire and rotates at the same speed. When braking, hydraulic pressure is used to push the brake shoe to contact the inner edge of the brake drum, and the frictional force generated by the contact is used to inhibit the rotation of the tire to achieve the purpose of braking.

[0003] In the composition of the current vehicle braking system, the brake drum is one of the crucial components. Unfortunately, due to the imperfect sealing measures of the brake drum, this directly leads to the easy intrusion of impurities such as moisture and dust into its interior during driving. Such intrusion not only affects the performance of the braking system but also shortens the service life of the entire braking system. When moisture and dust enter the brake drum, they will cause unnecessary friction with the brake pads. This friction reduces the braking efficiency and accelerates the wear of the brake pads. In addition, these impurities may also cause corrosion inside the brake drum, further damaging the braking performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a brake drum core with sealed protection to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A brake drum core with sealed protection, including a brake drum. A number of mounting bolts are fixed on one side of the brake drum. A first sealing ring is provided on the brake drum between the mounting bolts. An oil storage box is fixed on the inner side wall of the brake drum. An oil filling bolt is sleeved on the brake drum on one side of the oil storage box. A number of oil delivery pipes are connected around the oil storage box. Sealing felts are provided on the brake drum at the ends of the oil delivery pipes. A sealing bearing is provided inside the sealing felt. The sealing bearing is clamped on a snap ring. The snap ring is fixed on a mounting plate. Third sealing rings are provided on both sides of the mounting plate. A number of second sealing rings are provided beside each third sealing ring. The sealing felt is in fit with the mounting plate to block a large amount of moisture and dust from entering the interior of the brake drum. At the same time, the provided sealing bearing further blocks moisture and dust from entering the interior of the brake drum, and the oil storage box cooperates with the oil delivery pipes to supplement the lubricating oil consumed by the sealing felt.

[0006] Preferably, first mounting holes and second mounting holes are respectively formed on the brake drum and the mounting plate for mounting a rotating shaft.

[0007] Preferably, an annular mounting groove is formed on one side of the brake drum for mounting the sealing felt.

[0008] Preferably, one end of the oil pipeline is connected to the oil storage box, and the other end is attached to the sealing felt. Moreover, the diameter of the oil pipeline is relatively small, which can ensure the transportation of lubricating oil while preventing excessive lubricating oil from being transported.

[0009] Preferably, a brake ring is fixed inside the brake drum for braking.

[0010] Preferably, second grooves are provided at the positions of the first sealing rings on both sides of the brake drum and at the positions of the third sealing rings on both sides of the mounting plate for clamping the first sealing rings and the third sealing rings.

[0011] Preferably, first grooves of the same size as the second sealing rings are provided on both sides of the mounting plate for clamping the second sealing rings.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The present utility model realizes the sealing effect on the brake drum through the sealing felt, the first sealing ring, the second sealing ring, the third sealing ring and the sealing bearing. While ensuring that the inside of the brake drum is not invaded by external moisture and dust, it also significantly improves the overall durability and reliability of the brake drum. Through effective sealing measures, the internal mechanical components of the brake drum can be kept clean, thereby reducing wear and damage caused by pollutants. This not only extends the service life of the braking system, but also helps to maintain its optimal working performance and ensure driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a back three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 3 is a structural schematic diagram of the present utility model with the mounting plate removed;

[0017] Figure 4 is a side-sectional structural schematic diagram of the present utility model;

[0018] Figure 5 is a structural schematic diagram of the mounting plate of the present utility model;

[0019] Figure 6 is a structural schematic diagram of the oil storage box and the oil pipeline of the present utility model.

[0020] In the figure: 1. Brake drum; 2. Oil filling bolt; 3. Mounting bolt; 4. First sealing ring; 5. First mounting hole; 6. Mounting plate; 7. Second sealing ring; 8. Third sealing ring; 9. Mounting groove; 10. Sealed bearing; 11. Brake ring; 12. Oil storage box; 13. Oil pipeline; 14. Sealing felt; 15. Second mounting hole; 16. Snap ring; 17. First groove; 18. Second groove. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figures 1-6, the present utility model provides a technical solution: a brake drum core with sealed protection, including a brake drum 1. A number of mounting bolts 3 are fixed on one side of the brake drum 1. A first sealing ring 4 is provided on the brake drum 1 between the mounting bolts 3. An oil storage box 12 is fixed on the inner side wall of the brake drum 1. An oil filling bolt 2 is sleeved on the brake drum 1 on one side of the oil storage box 12. A number of oil delivery pipes 13 are connected around the oil storage box 12. A sealing felt 14 is provided on the brake drum 1 at the end of the oil delivery pipe 13. A sealing bearing 10 is provided inside the sealing felt 14. The sealing bearing 10 is clamped on a snap ring 16. The snap ring 16 is fixed on a mounting plate 6. Third sealing rings 8 are provided on both sides of the mounting plate 6. A number of second sealing rings 7 are provided beside each third sealing ring 8. The sealing felt 14 is attached to the mounting plate 6 to prevent a large amount of moisture and dust from entering the inside of the brake drum 1. At the same time, the provided sealing bearing 10 further prevents moisture and dust from entering the inside of the brake drum 1. And the oil storage box 12 cooperates with the oil delivery pipes 13 to supplement the lubricating oil consumed by the sealing felt 14.

[0025] Further, first mounting holes 5 and second mounting holes 15 are respectively formed on the brake drum 1 and the mounting plate 6 for mounting a rotating shaft.

[0026] Further, an annular mounting groove 9 is formed on one side of the brake drum 1 for mounting the sealing felt 14.

[0027] Further, one end of the oil delivery pipe 13 is connected to the oil storage box 12, and the other end is attached to the sealing felt 14. And the diameter of the oil delivery pipe 13 is relatively small, which can ensure the delivery of lubricating oil while preventing excessive delivery of lubricating oil.

[0028] Further, a brake ring 11 is fixed inside the brake drum 1 for braking.

[0029] Further, second grooves 18 are formed at the positions of the first sealing rings 4 on both sides of the brake drum 1 and at the positions of the third sealing rings 8 on both sides of the mounting plate 6 for clamping the first sealing rings 4 and the third sealing rings 8.

[0030] Further, first grooves 17 with the same size as the second sealing rings 7 are formed on both sides of the mounting plate 6 for clamping the second sealing rings 7.

[0031] Working principle: When the device is working, the brake drum 1 rotates together with the wheel. At the same time, the oil storage box 12, the oil delivery pipes 13, the brake ring 11, the oil filling bolt 2 fixed inside the brake drum 1 and the sealing felt 14 clamped on its side all rotate. During the rotation, the lubricating oil stored inside the oil storage box 12 flows into the oil delivery pipes 13 due to the action of centrifugal force, and then the oil delivery pipes deliver the lubricating oil to the sealing felt 14 to supplement the lubricating oil consumed by the sealing felt 14. If the lubricating oil inside the oil storage box 12 is exhausted, the oil filling bolt 2 is removed, and then lubricating oil can be filled into the oil storage box 12.

[0032] The sealed bearing 10 located on the mounting plate 6 further blocks dust and moisture from entering the brake drum 1. The first sealing ring 4 and the second sealing ring 7 cooperate with the third sealing ring 8 to seal the openings on the brake drum 1 and the mounting plate 6, preventing dust from entering the interior of the brake drum 1.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake drum core with sealing protection, characterized in that: The invention comprises a brake drum (1), wherein a plurality of mounting bolts (3) are fixed on one side of the brake drum (1), a first sealing ring (4) is arranged between the mounting bolts (3) on the brake drum (1), an oil storage box (12) is fixed on the inner wall of the brake drum (1), a refueling bolt (2) is sleeved on one side of the oil storage box (12), a plurality of oil delivery pipes (13) are connected around the oil storage box (12), a sealing felt (14) is arranged on the end of the oil delivery pipe (13) on the brake drum (1), a sealing bearing (10) is arranged on the inner side of the sealing felt (14), the sealing bearing (10) is clamped on a retaining ring (16), the retaining ring (16) is fixed on a mounting plate (6), third sealing rings (8) are arranged on both sides of the mounting plate (6), a plurality of second sealing rings (7) are arranged next to each third sealing ring (8), and the sealing felt (14) is in contact with the mounting plate (6).

2. A brake drum core with sealing protection according to claim 1, characterized in that: The brake drum (1) and the mounting plate (6) are respectively provided with a first mounting hole (5) and a second mounting hole (15).

3. The brake drum core with sealing protection according to claim 1, characterized in that: An annular mounting groove (9) is provided on one side of the brake drum (1).

4. The brake drum core with seal protection according to claim 1, characterized in that: One end of the oil delivery pipe (13) is connected to the oil storage box (12), and the other end is in contact with the sealing felt (14), and the diameter of the oil delivery pipe (13) is relatively small.

5. The brake drum core with seal protection according to claim 1, characterized in that: A brake ring (11) is fixed inside the brake drum (1).

6. The brake drum core with seal protection according to claim 1, characterized in that: Second grooves (18) are provided at positions of the first sealing ring (4) on both sides of the brake drum (1) and at positions of the third sealing ring (8) on both sides of the mounting plate (6).

7. The brake drum core with seal protection according to claim 1, characterized in that: First grooves (17) of the same size as the second sealing ring (7) are provided on both sides of the mounting plate (6).

Images