Brake drum structure for electric vehicle

Abstract

The utility model relates to the technical field of electric vehicle accessories, in particular to a brake drum structure for an electric vehicle, which comprises a wire sleeve, a connecting disc and a clamping cover, and an arc-shaped brake pad A and an arc-shaped brake pad B are respectively arranged at two ends of the inner side of the connecting disc. A wheel brake cylinder is connected between the top end of the arc-shaped brake pad A and the top end of the arc-shaped brake pad B through a fastening plate, a rocker arm A and a rocker arm B are arranged on the inner side of the arc-shaped brake pad A and the inner side of the arc-shaped brake pad B respectively, and an adjusting spring is arranged at the lower end of the wheel brake cylinder. An arc-shaped limiting plate is mounted on the inner side of the connecting disc and located at the bottom joint of the rocker arm A and the rocker arm B through a fixing plate; the dustproof and waterproof brake drum cover is used for an electric vehicle brake drum structure, the dustproof and waterproof effects are greatly achieved, the brake drum is effectively protected, all parts are prevented from being affected with damp and rusted, the service life is prolonged, the protection performance is good, the function of absorbing moisture in the clamping cover is achieved, and dryness of the interior is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle parts technology, specifically to a brake drum structure for electric vehicles. Background Technology

[0002] The brake drum is a crucial component of the drum brake system in electric vehicles, playing a key role in the braking system. Its primary function is to generate braking force through friction with brake pads or brake friction linings, thereby slowing down and stopping the vehicle. It also serves functions such as heat dissipation and increasing friction performance.

[0003] Existing structures for electric vehicle brake drums are ineffective at preventing dust and water damage, failing to provide adequate protection. Components are prone to moisture and corrosion, resulting in short service life, poor protection, and a lack of ability to absorb moisture from the cover to ensure internal dryness. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a brake drum structure for electric vehicles. This structure greatly improves dust and water resistance, effectively protects the brake drum, prevents various components from getting damp and rusted, extends service life, provides good protection, and also absorbs moisture inside the cover to ensure internal dryness.

[0005] The technical solution adopted by this utility model to solve its technical problem is a brake drum structure for electric vehicles, including a cable sleeve, a connecting disc and a locking cover. Arc-shaped brake pads A and B are respectively provided at both ends of the inner side of the connecting disc. A wheel brake caliper is connected between the top ends of the arc-shaped brake pads A and B through a fastening plate. Rocker arms A and B are respectively provided on the inner sides of the arc-shaped brake pads A and B. An adjusting spring is provided at the lower end of the wheel brake caliper.

[0006] An arc-shaped limiting plate is installed on the inner side of the connecting plate and at the bottom connection of rocker arm A and rocker arm B via a fixing plate. A locking cover is installed on one end of the connecting plate via bolts. A sleeve is welded to the inner axis of the locking cover and a moisture-absorbing cotton is sleeved around the outside of the sleeve. A rotating pressure block is connected to the inner side of rocker arm A via a rotating shaft, and a metal wire core is installed on the other end of the rotating pressure block via screws.

[0007] By adopting the above technical solution, the brake drum structure for electric vehicles can effectively prevent dust and water, protect the brake drum, prevent the parts from getting damp and rusted, extend the service life, provide good protection, and absorb moisture inside the cover to ensure the inside is dry.

[0008] Specifically, a reset spring rope is sleeved on the outside of the metal wire core that passes through the reserved opening on one side of the connecting disc and is located inside the locking cover. The reset spring rope is located inside the arc-shaped limiting plate.

[0009] By adopting the above technical solution, the metal wire core is pulled by the reset spring rope to achieve the reset effect, and the arc-shaped limiting plate plays the role of limiting and guiding.

[0010] Specifically, the outer side of the metal wire core is fitted with a wire sleeve, and positioning pieces are connected at equal intervals on the wire sleeve.

[0011] Specifically, a triangular connecting piece is installed on one side of the bottom end of the wheel brake cylinder by screws, and a support spring is hung between the triangular connecting piece and the rocker arm B through a hanging hole.

[0012] Specifically, one end of the adjusting spring is connected to a triangular connecting piece, and the other end of the adjusting spring is connected to a rocker arm A.

[0013] By adopting the above technical solution, the tension between the arc-shaped brake pad A and the arc-shaped brake pad B can be easily adjusted using an adjusting spring.

[0014] The beneficial effects of this utility model are:

[0015] (1) The present invention describes a brake drum structure for electric vehicles. Pulling the metal wire core drives the rotating pressure block to rotate, causing the rocker arm A to push the arc-shaped brake pad A outward. Under the action of the wheel brake caliper, the rocker arm B is pulled to expand the arc-shaped brake pad B outward, so that the arc-shaped brake pad A and the arc-shaped brake pad B are tightly attached to the inner wall of the locking cover. Since the locking cover is connected to the electric vehicle wheel disc by bolts, it achieves the braking effect on the wheel.

[0016] (2) The brake drum structure for electric vehicles described in this utility model has a great effect of dust and water protection due to the setting of the snap-fit ​​cover, which effectively protects the brake drum, prevents the parts from getting damp and rusted, extends the service life, and has good protection. The moisture-absorbing cotton inside the snap-fit ​​cover has the function of absorbing the moisture inside the snap-fit ​​cover, ensuring the dryness inside, and making it easy to replace the moisture-absorbing cotton. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the connecting disc of this utility model;

[0020] Figure 3This is a schematic diagram of the internal structure of the snap-fit ​​cover of this utility model.

[0021] In the diagram: 1. Metal wire core; 2. Wire sleeve; 3. Positioning plate; 4. Moisture-absorbing cotton sleeve; 5. Connecting disc; 6. Clamping cover; 7. Arc-shaped limiting plate; 8. Reset spring rope; 9. Rocker arm A; 10. Rotating pressure block; 11. Arc-shaped brake pad A; 12. Adjusting spring; 13. Fastening plate; 14. Wheel brake cylinder; 15. Triangular connecting piece; 16. Support spring; 17. Arc-shaped brake pad B; 18. Rocker arm B; 19. Fixing plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] To provide excellent dust and water protection for electric vehicle brake drums, effectively protecting the drums from moisture and corrosion, extending their service life, and ensuring good protection, the brake drum structure also absorbs moisture from the casing, keeping the interior dry. Figure 1-3 As shown, the present invention provides a brake drum structure for electric vehicles, comprising a cable sleeve 2, a connecting disc 5, and a locking cover 6. Arc-shaped brake pads A11 and B17 are respectively provided at both ends of the inner side of the connecting disc 5. A wheel brake caliper 14 is connected between the top ends of the arc-shaped brake pads A11 and B17 via a fastening plate 13. Rocker arms A9 and B18 are respectively provided on the inner sides of the arc-shaped brake pads A11 and B17. An adjusting spring 12 is provided at the lower end of the wheel brake caliper 14.

[0024] An arc-shaped limiting plate 7 is installed on the inner side of the connecting plate 5 and at the bottom connection of the rocker arm A9 and the rocker arm B18 via a fixing plate 19. A locking cover 6 is installed on one end of the connecting plate 5 via bolts. A sleeve is welded to the inner axis of the locking cover 6 and a moisture-absorbing cotton 4 is sleeved around the outside of the sleeve. A rotating pressure block 10 is connected to the inner side of the rocker arm A9 via a rotating shaft, and a metal wire core 1 is installed on the other end of the rotating pressure block 10 via screws.

[0025] When in use, the structure of the brake drum for electric vehicles provides excellent dust and water protection, effectively protecting the brake drum, preventing various parts from getting damp and rusted, extending its service life, providing good protection, and also absorbing moisture inside the cover to ensure internal dryness.

[0026] For example, such as Figure 1 , 2As shown, the present invention also includes a reset spring rope 8 sleeved on the outside of the metal wire core 1 that passes through the reserved opening on one side of the connecting disc 5 and is located inside the locking cover 6. The reset spring rope 8 is located inside the arc-shaped limiting plate 7.

[0027] In use, the metal wire core 1 is pulled by the reset spring rope 8 to achieve the reset effect, and the arc-shaped limit plate 7 serves as the limit guide.

[0028] For example, such as Figure 1 As shown, the present invention also includes a wire sleeve 2 sleeved on the outside of the metal wire core 1, and positioning pieces 3 are connected at equal intervals on the wire sleeve 2.

[0029] When in use, the wire sleeve 2 protects the metal wire core 1, and the positioning piece (3) makes it easy to fix the wire sleeve (2) with the screw.

[0030] For example, such as Figure 2 As shown, the present invention also includes a triangular connecting piece 15 mounted on one side of the bottom end of the wheel brake cylinder 14 by screws, and a support spring 16 is hung between the triangular connecting piece 15 and the rocker arm B18 through a hanging hole.

[0031] In use, the support spring 16 serves as a support frame between the triangular connecting piece 15 and the rocker arm B18.

[0032] For example, such as Figure 2 As shown, the present invention also includes a triangular connecting piece 15 connected to one end of the adjusting spring 12 and a rocker arm A9 connected to the other end of the adjusting spring 12.

[0033] In use, the tension between the arc-shaped brake pad A11 and the arc-shaped brake pad B17 can be adjusted using the adjusting spring 12.

[0034] When this utility model is in use, pulling the metal wire core 1 drives the rotating pressure block 10 to rotate, causing the rocker arm A9 to push the arc-shaped brake pad A11 outward, and under the action of the wheel brake caliper 14, pulling the rocker arm B18 causes the arc-shaped brake pad B17 to expand outward, so that the arc-shaped brake pad A11 and the arc-shaped brake pad B17 are tightly attached to the inner wall of the locking cover 6. Since the locking cover 6 is connected to the electric vehicle wheel disc by bolts, it achieves the braking effect on the wheel.

[0035] Due to the design of the locking cover 6, it greatly provides dust and water protection, effectively protecting the brake drum, preventing various parts from getting damp and rusting, extending service life, and providing good protection. The moisture-absorbing cotton 4 inside the locking cover 6 absorbs moisture inside the locking cover 6, ensuring internal dryness, and making it easy to replace the moisture-absorbing cotton 4.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A brake drum structure for electric vehicles, characterized in that, Includes a wire sleeve (2), a connecting disc (5) and a snap-fit ​​cover (6). The inner ends of the connecting disc (5) are respectively provided with an arc-shaped brake pad A (11) and an arc-shaped brake pad B (17). The top ends of the arc-shaped brake pad A (11) and the arc-shaped brake pad B (17) are connected by a fastening plate (13) to a wheel brake cylinder (14). The inner sides of the arc-shaped brake pad A (11) and the arc-shaped brake pad B (17) are respectively provided with a rocker arm A (9) and a rocker arm B (18). The lower end of the wheel brake cylinder (14) is provided with an adjusting spring (12). An arc-shaped limiting plate (7) is installed on the inner side of the connecting plate (5) and at the bottom connection of rocker arm A (9) and rocker arm B (18) via a fixing plate (19). A locking cover (6) is installed on one end of the connecting plate (5) via bolts. A sleeve is welded to the inner axis of the locking cover (6) and a moisture-absorbing cotton (4) is sleeved around the outside of the sleeve. A rotating pressure block (10) is connected to the inner side of the rocker arm A (9) via a rotating shaft, and a metal wire core (1) is installed on the other end of the rotating pressure block (10) via screws.

2. The brake drum structure for electric vehicles according to claim 1, characterized in that, The metal wire core (1) passes through the reserved opening on one side of the connecting plate (5) and is located inside the snap cover (6). A reset spring rope (8) is sleeved on the outside of the metal wire core (1). The reset spring rope (8) is located inside the arc-shaped limiting plate (7).

3. The brake drum structure for electric vehicles according to claim 1, characterized in that, The outer side of the metal wire core (1) is fitted with a wire sleeve (2), and positioning pieces (3) are connected at equal intervals on the wire sleeve (2).

4. A brake drum structure for electric vehicles according to claim 1, characterized in that, A triangular connecting piece (15) is installed on one side of the bottom end of the wheel brake cylinder (14) by screws. A support spring (16) is hung between the triangular connecting piece (15) and the rocker arm B (18) through a hanging hole.

5. A brake drum structure for an electric vehicle according to claim 1, characterized in that, One end of the adjusting spring (12) is connected to a triangular connecting piece (15), and the other end of the adjusting spring (12) is connected to a rocker arm A (9).

Images