Abrasion-resistant treatment device for rear brake camshaft

Abstract

The utility model relates to the technical field of rear brake camshafts, and discloses a rear brake camshaft wear-resistant treatment device which comprises a camshaft, two oil injection holes are formed in the camshaft, a circulation hole is formed in the middle side of the interior of the camshaft, and a fixing ring is detachably connected to the bottom side of the exterior of the camshaft. A cam disc is detachably connected to the bottom of the cam shaft, a plug is arranged on the bottom side of the interior of the cam disc, a brake bottom plate bush is fixedly connected to the top of the fixing ring, a bearing hole is formed in the right side of the interior of the brake bottom plate bush, and a main oil duct is formed in the brake bottom plate bush. A plurality of auxiliary oil channels are formed in the brake bottom plate lining, and a disassembling assembly used for disassembling and assembling is arranged outside the cam shaft. According to the utility model, the lubricating oil can be uniformly and fully distributed to each part needing to be lubricated. Abrasion caused by friction is reduced, and the camshaft is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rear brake camshafts, in particular to a wear-resistant treatment device for a rear brake camshaft. Background Art

[0002] The rear brake camshaft is an important component in the automobile braking system. It is located at the rear of the vehicle and is directly involved in the braking process. The main function of this component is to convert the braking force from the driver into actual braking pressure through a series of mechanical transmissions, thereby causing the brake pad to come into close contact with the brake disc or drum, generating sufficient friction to slow down the wheel speed and achieve effective deceleration or stopping of the vehicle. The camshaft is designed with a specific cam shape. When these cams are subjected to force, they will push the related brake components (such as brake arms or brake pads) outward, increase the contact force with the brake disc or drum, and thus achieve the effect of enhancing the braking force.

[0003] However, some existing camshafts do not have a lubrication surface between the rear brake camshaft and the brake base plate bearing, resulting in the inability to add oil and lubrication between the rear brake camshaft and the brake base plate bearing, causing the rear wheel brake camshaft to be stuck or the brake base plate shaft hole to be severely worn, resulting in poor braking effect and increased wear of other parts of the rear wheel brake system. Therefore, in view of the above shortcomings, a rear brake camshaft wear-resistant treatment device is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a rear brake camshaft wear-resistant treatment device, which aims to improve the problem that some rear brake camshafts in the prior art are not easy to achieve effective lubrication.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rear brake camshaft wear-resistant treatment device, comprising a camshaft, wherein two oil filling holes are provided inside the camshaft, a circulation hole is provided inside the middle side of the camshaft, a fixing ring is detachably connected to the outer bottom side of the camshaft, a cam disc is detachably connected to the bottom of the camshaft, a plug is provided on the inner bottom side of the cam disc, a brake base plate bushing is fixedly connected to the top of the fixing ring, a bearing hole is provided on the inner right side of the brake base plate bushing, a main oil channel is provided inside the brake base plate bushing, a plurality of auxiliary oil channels are provided inside the brake base plate bushing, and a disassembly component for disassembly and assembly is provided on the outside of the camshaft;

[0007] As a further description of the above technical solution:

[0008] The disassembly assembly comprises a mounting plate, the rear side of the mounting plate is fixedly connected to the front side of the camshaft, a sliding ring is slidably connected inside the mounting plate, a sliding rod is fixedly connected inside the sliding ring, a spring is sleeved outside the sliding rod, a pressing plate is fixedly connected to the top of the sliding rod, a sliding plate is fixedly connected to the bottom of the sliding rod, the left and right sides of the bottom of the sliding plate are rotatably connected to rotating rods, the insides of the two rotating rods are rotatably connected to fixed shafts, the bottoms of the two rotating rods are rotatably connected to limit rods, a docking hole is opened inside the mounting plate, and a right-angle grease nipple is arranged inside the docking hole;

[0009] As a further description of the above technical solution:

[0010] One end of the spring is fixedly connected to the bottom of the sliding ring, and the other end of the spring is fixedly connected to the inside of the mounting plate;

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the bottom of the sliding ring, and the other end of the spring is fixedly connected to the inside of the mounting plate;

[0013] As a further description of the above technical solution:

[0014] The outer portion of the fixed shaft is fixedly connected to the inner portion of the mounting plate, and the outer portion of the rotating rod is slidably connected to the inner portion of the mounting plate;

[0015] As a further description of the above technical solution:

[0016] The outer portion of the limiting rod is slidably connected to the inner portion of the right-angle grease nipple, and the rear side of the right-angle grease nipple is slidably connected to the inner portion of one of the oil filling holes.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the present invention, by opening an oil filling hole and a circulation hole inside the camshaft, and designing a main oil channel and multiple auxiliary oil channels inside the brake base bushing, comprehensive lubrication of the key components of the entire brake system is achieved. The lubricating oil is injected from the right-angle grease nipple, enters the circulation hole through the oil filling hole, and finally flows into the main oil channel and the auxiliary oil channel, ensuring that the lubricating oil can be evenly and fully distributed to every part that needs lubrication. The wear caused by friction is reduced, the service life of the camshaft and related brake components is extended, and the operating efficiency and reliability of the entire brake system are also improved.

[0019] 2. In the utility model, the installation or removal of the right-angle grease fitting can be quickly completed by a simple pressing action. When it is necessary to inject lubricating oil or perform maintenance, the operator only needs to press the pressing plate to make the limit rod disengage from the right-angle grease fitting, thereby realizing the quick release of the right-angle grease fitting. This not only simplifies the maintenance process and reduces the difficulty of operation, but also saves maintenance time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a rear brake camshaft wear-resistant treatment device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the cam plate structure of a rear brake camshaft wear-resistant treatment device proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a fixing ring of a rear brake camshaft wear-resistant treatment device proposed by the utility model;

[0023] Figure 4 A schematic diagram of the brake bottom plate bushing structure of a rear brake camshaft wear-resistant treatment device proposed by the utility model;

[0024] Figure 5 The utility model provides a schematic diagram of the limit rod structure of the rear brake camshaft wear-resistant treatment device.

[0025] Legend:

[0026] 1. Camshaft; 2. Oil filling hole; 3. Circulation hole; 4. Fixed ring; 5. Cam plate; 6. Plug; 7. Brake base plate bushing; 8. Bearing hole; 9. Main oil channel; 10. Auxiliary oil channel; 11. Mounting plate; 12. Sliding ring; 13. Sliding rod; 14. Spring; 15. Pressing plate; 16. Sliding plate; 17. Rotating rod; 18. Fixed shaft; 19. Limiting rod; 20. Docking hole; 21. Right-angle grease fitting. DETAILED DESCRIPTION

[0027] 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.

[0028] Reference Figures 1 to 3The utility model provides an embodiment: a rear brake camshaft wear-resistant treatment device, including a camshaft 1, which is the core component of the entire device and is used to transmit and convert force. Two oil injection holes 2 are provided inside the camshaft 1, and the oil injection holes 2 are used to inject lubricating oil into the camshaft 1 to reduce wear and extend service life. A flow hole 3 is provided on the inner middle side of the camshaft 1. The function of the flow hole 3 is to ensure that the lubricating oil can flow freely inside the camshaft 1 to achieve a better lubrication effect. The inside of the oil injection hole 2 is connected with the inside of the flow hole 3. The diameter of the flow hole 3 and the oil injection hole 2 are both 4 mm and the length is 150 mm. The lubricating oil can flow from the oil injection hole 2 and then flow smoothly to the flow hole 3 to achieve overall lubrication. The outer bottom side of the camshaft 1 is detachably connected with a fixing ring 4;

[0029] A cam disc 5 is detachably connected to the bottom of the camshaft 1. The cam disc 5 is a key component used in conjunction with the camshaft 1 and is used to transmit braking force. A plug 6 is provided on the inner bottom side of the cam disc 5. The plug 6 is used to close the part of the cam disc 5 that does not require lubrication to prevent leakage of lubricating oil. A brake base plate bushing 7 is fixedly connected to the top of the fixing ring 4. The brake base plate bushing 7 serves as a connecting and protective component to ensure the stable operation of the braking system. A bearing hole 8 is provided on the right side of the inside of the brake base plate bushing 7. A main oil channel 9 is provided inside the brake base plate bushing 7. The main oil channel 9 is the main channel for lubricating oil and is responsible for transporting lubricating oil to key parts of the camshaft 1. A plurality of auxiliary oil channels 10 are provided inside the brake base plate bushing 7. The auxiliary oil channels 10 assist the main oil channels 9 to ensure that the lubricating oil can be evenly distributed. A disassembly component for disassembly and assembly is provided on the outside of the camshaft 1.

[0030] Reference Figures 3 to 5 The disassembly assembly includes a mounting plate 11. The mounting plate 11 serves as a basic platform for the disassembly assembly and is used to fix and support other components. The rear side of the mounting plate 11 is fixedly connected to the front side of the camshaft 1. The interior of the mounting plate 11 is slidably connected with a sliding ring 12. The sliding ring 12 can slide in the mounting plate 11. The interior of the sliding ring 12 is fixedly connected with a sliding rod 13. The exterior of the sliding rod 13 is sleeved with a spring 14. One end of the spring 14 is fixedly connected to the bottom of the sliding ring 12, and the other end of the spring 14 is fixedly connected to the interior of the mounting plate 11. The spring 14 is used to provide necessary pressure and reset functions to ensure the smooth progress of the disassembly process.

[0031] The top of the sliding rod 13 is fixedly connected with a pressing plate 15, which is the part that the operator directly acts on, and the disassembly action is achieved by pressing. The bottom of the sliding rod 13 is fixedly connected with a sliding plate 16, and the bottom left and right sides of the sliding plate 16 are rotatably connected with rotating rods 17. The outer side of the rotating rod 17 is slidably connected to the inside of the mounting plate 11, and the inner sides of the two rotating rods 17 are rotatably connected with fixed shafts 18. The fixed shaft 18 is designed here to enable the rotating rod 17 to rotate around the fixed shaft 18 when a force is applied, and the outer side of the fixed shaft 18 The two rotating rods 17 are fixedly connected to the inside of the mounting plate 11, and the bottoms of the two rotating rods 17 are both rotatably connected to the limit rod 19. The displacement of the limit rod 19 is designed here to realize the installation and disassembly of the right-angle grease nipple 21. A docking hole 20 is provided inside the mounting plate 11, and a right-angle grease nipple 21 is provided inside the docking hole 20. The right-angle grease nipple 21 is designed here to realize the injection of lubricating oil. The outside of the limit rod 19 is slidably connected to the inside of the right-angle grease nipple 21, and the rear side of the right-angle grease nipple 21 is slidably connected to the inside of one of the oil filling holes 2.

[0032] Working principle: When it is necessary to lubricate the inside of the camshaft 1 and the brake base bushing 7, the lubricating oil can be passed through the inside of the right-angle grease nipple 21, through the inside of the upper oil filling hole 2 to the inside of the flow hole 3, and finally out through the inside of the bottom oil filling hole 2. At this time, the lubricating oil will flow into the inside of the main oil channel 9, and with the help of the connection between the main oil channel 9 and the auxiliary oil channel 10, the lubricating oil can flow into the inside of the auxiliary oil channel 10. Finally, the inside of the brake base bushing 7 can be fully lubricated, thereby greatly improving the lubrication effect and reducing the friction. The influence of can greatly improve its wear resistance. When the right-angle grease nipple 21 needs to be disassembled, the pressing plate 15 can be pressed. The displacement of the pressing plate 15 can drive the sliding ring 12 to be displaced, and then the spring 14 can be compressed. At this time, the sliding plate 16 will be displaced downward, and the rotating rod 17 can be rotated under force, and then the limiting rod 19 can be rotated. At this time, the limiting rod 19 can be separated from the inside of the right-angle grease nipple 21. At this time, the right-angle grease nipple 21 can be taken out, thereby completing the disassembly of the right-angle grease nipple 21.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A rear brake camshaft wear-resistant treatment device, comprising a camshaft (1), characterized in that: The camshaft (1) is provided with two oil filling holes (2) inside, the camshaft (1) is provided with a circulation hole (3) on the middle side inside, the outer bottom side of the camshaft (1) is detachably connected with a fixing ring (4), the bottom of the camshaft (1) is detachably connected with a cam disc (5), the inner bottom side of the cam disc (5) is provided with a plug (6), the top of the fixing ring (4) is fixedly connected with a brake base plate bushing (7), the inner right side of the brake base plate bushing (7) is provided with a bearing hole (8), the inner side of the brake base plate bushing (7) is provided with a main oil channel (9), the inner side of the brake base plate bushing (7) is provided with a plurality of auxiliary oil channels (10), and the outer side of the camshaft (1) is provided with a disassembly component for disassembly and assembly.

2. The rear brake camshaft wear-resistant treatment device according to claim 1, characterized in that: The disassembly assembly comprises a mounting plate (11), the rear side of the mounting plate (11) is fixedly connected to the front side of the camshaft (1), the interior of the mounting plate (11) is slidably connected to a sliding ring (12), the interior of the sliding ring (12) is fixedly connected to a sliding rod (13), the exterior of the sliding rod (13) is sleeved with a spring (14), the top of the sliding rod (13) is fixedly connected to a pressing plate (15), the bottom of the sliding rod (13) is fixedly connected to a sliding plate (16), the bottom of the sliding plate (16) is rotatably connected to rotating rods (17) on both sides, the interiors of the two rotating rods (17) are rotatably connected to fixed shafts (18), the bottoms of the two rotating rods (17) are rotatably connected to limiting rods (19), a docking hole (20) is provided inside the mounting plate (11), and a right-angle grease nipple (21) is provided inside the docking hole (20).

3. The rear brake camshaft wear-resistant treatment device according to claim 1, characterized in that: The interior of the oil filling hole (2) is connected to the interior of the circulation hole (3); the circulation hole (3) and the oil filling hole (2) both have a diameter of 4 mm and a length of 150 mm.

4. The rear brake camshaft wear-resistant treatment device according to claim 2, characterized in that: One end of the spring (14) is fixedly connected to the bottom of the sliding ring (12), and the other end of the spring (14) is fixedly connected to the inside of the mounting plate (11).

5. The rear brake camshaft wear-resistant treatment device according to claim 2, characterized in that: The outside of the fixed shaft (18) is fixedly connected to the inside of the mounting plate (11), and the outside of the rotating rod (17) is slidably connected to the inside of the mounting plate (11).

6. The rear brake camshaft wear-resistant treatment device according to claim 2, characterized in that: The outside of the limiting rod (19) is slidably connected to the inside of the right-angle grease nipple (21), and the rear side of the right-angle grease nipple (21) is slidably connected to the inside of one of the oil filling holes (2).

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