Electric brake hub

Abstract

The utility model relates to the technical field of brake hubs, and discloses an electric brake hub which comprises a brake drum, a brake disc is fixedly connected outside the brake drum, a half shaft is fixedly connected inside the brake drum, one side, far away from the brake drum, of the half shaft is slidably connected with a hole-opening pin, a flat key is slidably connected inside the hole-opening pin, and the flat key is fixedly connected with the brake disc. A brake mechanism is arranged in the brake drum and used for braking the brake drum. According to the 140 brake, the diameters of the brake drum and the brake shoe are increased, the contact area is increased, the braking force is improved, the braking effect is obviously improved, and the 140 brake is low in price and cost, so that the 140 brake not only can meet the requirements of 130 brake customers for improvement and upgrading, but also can improve part of 160 brake customers for reducing the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of brake hubs, in particular to an electric brake hub. Background Technique

[0002] The electric brake hub is a key component in electric vehicles and is related to the braking system of electric vehicles. With the rapid development of the electric vehicle industry, the technology of electric brake hubs is also constantly advancing, aiming to improve braking efficiency, reduce energy consumption and enhance driving safety. In the field of materials science, in order to meet the needs of electric vehicles, the materials of brake hubs are also constantly evolving.

[0003] As an important part of electric vehicles, the progress of the design and technology of electric brake hubs is directly related to the performance of the vehicle and the safety of passengers.

[0004] The brake drums and brake shoe blocks of the commonly used 130 brakes in the market are relatively small, and the braking effect is relatively low. The price cost of the commonly used 160 brakes in the market is relatively high. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an electric brake hub, aiming to improve the problems of relatively low braking effect of the 130 brake and relatively high price cost of the 160 brake in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric brake hub, including a brake drum, a brake disc is fixedly connected to the outside of the brake drum, a half shaft is fixedly connected to the inside of the brake drum, an opening pin is slidably connected to one side of the half shaft away from the brake drum, a flat key is slidably connected to the inside of the opening pin, and a braking mechanism is arranged inside the brake drum, and the braking mechanism is used to brake the brake drum.

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

[0008] The braking mechanism includes two brake shoe blocks, both of the two brake shoe blocks are arranged inside the brake drum, and the opposite sides of the two brake shoe blocks are in contact with the inner wall of the brake drum.

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

[0010] A bearing is arranged between the brake drum and the half shaft, and a retaining ring is arranged between the bearing and the brake drum.

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

[0012] A bridge tube is sleeved outside the half shaft, and a shaft sleeve is arranged between the half shaft and the bridge tube.

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

[0014] A slotted nut is threadedly connected between the opening pin and the brake drum.

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

[0016] A rocker arm shaft is rotatably connected to the inner side of the brake drum.

[0017] As a further description of the above technical solution:

[0018] Hub screws are threadedly connected to the outer side of the brake drum.

[0019] As a further description of the above technical solution:

[0020] A return spring is fixedly connected between the two brake shoe blocks.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the diameters of the brake drum and the brake shoe blocks of the 140 brake are increased. Due to the increased contact area, the braking force is improved, and the braking effect is significantly improved. The price cost of the 140 brake is relatively low. Therefore, the 140 brake can not only meet the improvement and upgrade requirements of 130 brake customers, but also help some 160 brake customers reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional view of an electric brake hub proposed by the utility model;

[0024] Figure 2 is a schematic diagram of the brake drum of an electric brake hub proposed by the utility model;

[0025] Figure 3 is a schematic diagram of the brake disc of an electric brake hub proposed by the utility model;

[0026] Figure 4 is a schematic diagram of the brake shoe block of an electric brake hub proposed by the utility model.

[0027] Legend:

[0028] 1. Brake drum; 2. Brake shoe block; 3. Brake disc; 4. Half shaft; 5. Bearing; 6. Retaining ring; 7. Bush; 8. Axle tube; 9. Opening pin; 10. Flat key; 11. Slotted nut; 12. Hub screw; 13. Rocker arm shaft; 14. Return spring. DETAILED DESCRIPTION OF THE INVENTION

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Referring to Figure 1 - Figure 2 , an embodiment provided by the present utility model: an electric brake drum, including a brake drum 1, the brake drum 1 functions to fix the internal structure, a brake disc 3 is fixedly connected to the outside of the brake drum 1, the brake disc 3 functions to push the brake shoe 2, a half shaft 4 is fixedly connected to the inside of the brake drum 1, the half shaft 4 functions to connect the axle and the brake drum 1, a split pin 9 is slidably connected to the side of the half shaft 4 away from the brake drum 1, the split pin 9 functions to connect the half shaft 4, a flat key 10 is slidably connected to the inside of the split pin 9, a braking mechanism is arranged inside the brake drum 1, and the braking mechanism is used to brake the brake drum 1. A bearing 5 is arranged between the half shaft 4 and the brake drum 1, the bearing 5 functions to connect the half shaft 4 and the brake drum 1, a retaining ring 6 is arranged between the bearing 5 and the brake drum 1, a bridge tube 8 is sleeved outside the half shaft 4, the bridge tube 8 functions to protect the half shaft 4, a bushing 7 is arranged between the half shaft 4 and the bridge tube 8, a slotted nut 11 is threadedly connected between the split pin 9 and the brake drum 1, a rocker arm shaft 13 is rotatably connected to the inner side of the brake drum 1, the rocker arm shaft 13 functions to connect the bottom plate and the axle, and a hub screw 12 is threadedly connected to the outside of the brake drum 1.

[0031] Referring to Figure 3 - Figure 4 , the braking mechanism includes two brake shoes 2, the brake shoes 2 function to brake the brake drum 1, both of the two brake shoes 2 are arranged inside the brake drum 1, and the opposite sides of the two brake shoes 2 are both abutted against the inner wall of the brake drum 1. A return spring 14 is fixedly connected between the two brake shoes 2, and the return spring 14 functions to provide elastic force to reset the two brake shoes 2.

[0032] Working principle: When the vehicle is running, by stepping on the brake pedal, the brake agent is conveyed into the brake disc 3, the piston inside the brake disc 3 is pushed, and the brake shoes 2 are pushed to separate relatively. When the brake shoes 2 contact the inner wall of the brake drum 1, friction is generated to stop the movement of the brake drum 1 and stop the rotation of the half shaft 4 for braking. When the brake pedal is released, the piston inside the brake disc 3 resets, and the brake shoes 2 are reset by the rebound of the return spring 14 to release the braking state.

[0033] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric brake hub, comprising a brake drum (1), characterized in that: The outside of the brake drum (1) is fixedly connected with a brake disc (3), the inside of the brake drum (1) is fixedly connected with a half shaft (4), a split pin (9) is slidably connected to the side of the half shaft (4) away from the brake drum (1), a flat key (10) is slidably connected to the inside of the split pin (9), a braking mechanism is arranged inside the brake drum (1), and the braking mechanism is used to brake the brake drum (1).

2. The electric brake hub according to claim 1, characterized in that: The braking mechanism includes two brake shoe blocks (2), both of the two brake shoe blocks (2) are arranged inside the brake drum (1), and the opposite sides of the two brake shoe blocks (2) are in contact with the inner wall of the brake drum (1).

3. The electric brake hub according to claim 1, characterized in that: A bearing (5) is arranged between the brake drum (1) and the half shaft (4), and a retaining ring (6) is arranged between the bearing (5) and the brake drum (1).

4. An electric brake drum according to claim 1, characterized in that: A bridge tube (8) is sleeved outside the half shaft (4), and a bushing (7) is arranged between the half shaft (4) and the bridge tube (8).

5. An electric brake hub according to claim 1, characterized in that: A slotted nut (11) is threadedly connected between the split pin (9) and the brake drum (1).

6. The electric brake hub according to claim 1, wherein: A rocker arm shaft (13) is rotatably connected to the inner side of the brake drum (1).

7. An electric brake hub according to claim 1, characterized in that: Hub screws (12) are threadedly connected to the outside of the brake drum (1).

8. The electric brake hub according to claim 2, wherein: A return spring (14) is fixedly connected between the two brake shoe blocks (2).

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