Structure of rear axle brake pot of electric tricycle

Abstract

The utility model discloses electric tricycle rear axle brake pot structure belongs to brake pot technical field, including brake pot and the arrangement in the inside of brake pot for with electric tricycle's brake contact friction and carry out the friction structure of braking, and the friction structure includes four arc friction plates even detachable installation in the inside of brake pot, and the mutual splicing between four arc friction plates. The utility model discloses, through setting up several spliced arc friction plates in the inside of brake pot, can produce friction with brake pad when electric tricycle carries out brake operation, reaches the brake effect, and arc friction plate has adopted the design of detachable, when having arc friction plate serious abrasion, can through pulling limit toothed plate and rotating and disassembling the blocking protective sleeve ring, can expose arc friction plate, at this moment, the corresponding arc friction plate can be taken out and replaced by pulling, can realize the individual replacement of the arc friction plate of wearing, avoids replacing the whole brake pot, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of brake pot technology, specifically to the structure of a brake pot for the rear axle of an electric tricycle. Background Technology

[0002] The rear axle brake drum (also known as the rear axle brake drum) of an electric tricycle is the core component of the rear axle braking system. It undertakes the friction braking function when the vehicle brakes, which is directly related to driving safety. The inner wall of the brake drum cooperates with the brake pads to convert the vehicle's kinetic energy into heat energy through friction, thereby achieving deceleration or stopping.

[0003] Chinese Patent Publication No. CN219388481U discloses a brake pot structure for the rear axle of an electric tricycle. The center of the front (1) of the pot body has an opening for installing a rotating shaft bearing sleeve reinforcing base plate (5). The rotating shaft bearing sleeve reinforcing base plate (5) protrudes 11mm to 18mm from the front (1) of the pot body. An annular protrusion (3) is provided at the intersection of the front (1) of the pot body and the groove surface (8) of the pot body. Five or six pot body reinforcing ribs (2) are arranged parallel to each other at equal intervals on the side of the front (1) of the pot body. One end of the pot body reinforcing rib (2) is connected to the annular protrusion (3) on the front (1) of the pot body. This utility model can ensure strength while being compatible with main shafts of various diameters, and can effectively improve the durability and maintenance convenience of the brake pot.

[0004] In the aforementioned prior art, when an electric tricycle brakes, the brake pads rub against the inner wall of the brake pan. Prolonged use will cause wear on the inner wall of the brake pan, resulting in reduced braking performance. However, most brake pans are designed as a single piece, and the wear is mainly on the inner wall that contacts the brake pads. Other parts of the pan, such as the outer structure and the flange connecting the bearings, are usually still in good condition. Replacing the entire pan means discarding the undamaged parts, resulting in material waste. Utility Model Content

[0005] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a rear axle brake pot structure for electric tricycles, so as to solve the problem mentioned in the background art that when the inner wall of the brake pot of an electric tricycle is worn, it usually needs to be replaced as a whole, while other parts of the pot body are usually still in good condition. Replacing the whole means discarding the undamaged parts, resulting in material waste.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The rear axle brake drum structure of the electric tricycle includes:

[0008] Brake pot, also includes:

[0009] The friction structure is arranged inside the brake drum and is used to contact and rub against the brake of the electric tricycle to brake.

[0010] A reinforcing structure, placed on the friction structure, is used to reinforce the installation of the friction structure;

[0011] The airflow guiding structure, located on the brake pot, is used to guide the airflow to contact the arc-shaped friction plate to cool it down.

[0012] Preferably, the friction structure includes:

[0013] Four arc-shaped friction plates are evenly and detachably installed inside the brake drum, and the four arc-shaped friction plates are spliced ​​together with each other;

[0014] The retaining ring is movably fitted onto the brake drum and four arc-shaped friction plates;

[0015] A threaded ring is fixedly fitted onto the brake drum, and the retaining sleeve is threaded onto the threaded ring;

[0016] Four sets of positioning components are arranged on the corresponding arc-shaped friction plates to position the installation of the arc-shaped friction plates.

[0017] Preferably, the positioning component includes:

[0018] Two T-slots are formed inside the arc-shaped friction plate;

[0019] Two T-shaped strips are arranged on the inner wall of the brake pot, and the two T-shaped strips are slidably installed in the two T-shaped grooves respectively.

[0020] Preferably, the reinforcement structure includes:

[0021] The gear ring is fixedly fitted onto the retaining sleeve ring;

[0022] Guide strips are arranged on the outer surface of the brake drum;

[0023] The slider is slidably installed inside the guide bar;

[0024] The limiting toothed plate is arranged on one side of the slide bar and meshes with the toothed ring.

[0025] Preferably, the reinforcing structure further includes an elastic component arranged on the slide bar, which is used to push the slide bar so that the limiting tooth plate and the toothed ring are kept in an engaged state.

[0026] Preferably, the elastic component includes:

[0027] A spring is arranged on one side of the slider, with one end of the spring arranged on the inner wall of the guide bar;

[0028] A fixed guide rod is arranged on the inner wall of the guide strip and slidably installed inside the slide bar, and the spring is slidably sleeved on the fixed guide rod.

[0029] Preferably, the flow guiding structure includes a plurality of strip-shaped flow guiding holes, which are evenly distributed inside the brake pot, and the strip-shaped flow guiding holes correspond to one side of the arc-shaped friction plate.

[0030] Preferably, the drainage structure further includes several drainage hoods, which are evenly arranged on the outer surface of the brake pot, and the drainage hoods are connected to the strip-shaped drainage holes.

[0031] The beneficial effects of this utility model are as follows:

[0032] This invention utilizes a series of interlocking arc-shaped friction plates inside the brake pan. These plates rub against the brake pads during braking operations on an electric tricycle, reducing wheel speed and achieving a braking effect. The arc-shaped friction plates are detachable; when one plate is severely worn, the limiting toothed plate can be pulled and the retaining ring rotated to expose it. The corresponding plate can then be removed and replaced by pulling it out. This allows for individual replacement of worn arc-shaped friction plates, avoiding the need to replace the entire brake pan and reducing maintenance costs.

[0033] In this invention, the brake pot rotates with the wheels of the electric tricycle, causing the flow hood to move in a circular motion. When the flow hood moves, it can introduce external cold air into the strip-shaped flow holes, forming an airflow that flows along the strip-shaped flow holes. This airflow can carry away the heat of the arc-shaped friction plate, providing auxiliary cooling for the arc-shaped friction plate and helping to extend its service life. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the structure of the rear axle brake drum of the electric tricycle provided in an embodiment of this utility model;

[0036] Figure 2 A schematic diagram of the arc-shaped friction plate structure of the rear axle brake pan structure of the electric tricycle provided in this embodiment of the utility model;

[0037] Figure 3 An exploded structural diagram of the arc-shaped friction plate of the rear axle brake pan structure of the electric tricycle provided in this embodiment of the utility model;

[0038] Figure 4 A schematic diagram of the T-shaped strip structure of the rear axle brake drum structure of the electric tricycle provided in this embodiment of the utility model;

[0039] Figure 5 A schematic diagram of the cross-sectional structure of the strip-shaped guide hole in the rear axle brake pan structure of the electric tricycle provided in this embodiment of the utility model;

[0040] Figure 6 A schematic diagram of the guide strip structure of the rear axle brake drum structure of the electric tricycle provided in this embodiment of the utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Brake drum; 2. Arc-shaped friction plate; 201. Protective sleeve ring; 202. T-slot; 203. T-strip; 204. Threaded ring; 3. Gear ring; 301. Guide strip; 302. Sliding strip; 303. Limiting toothed plate; 304. Spring; 305. Fixed guide rod; 4. Strip-shaped guide hole; 401. Drainage cover. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Example 1:

[0045] like Figures 1 to 6 As shown, this utility model provides a rear axle brake pot structure for an electric tricycle, including: a brake pot 1 and a friction structure arranged inside the brake pot 1 for contacting and rubbing against the brake of the electric tricycle to perform braking.

[0046] The friction structure includes four arc-shaped friction plates 2 uniformly and detachably installed inside the brake pan 1. The four arc-shaped friction plates 2 are spliced ​​together. A retaining ring 201 is movably sleeved on the brake pan 1 and the four arc-shaped friction plates 2. A threaded ring 204 is fixedly sleeved on the brake pan 1. The retaining ring 201 is threaded onto the threaded ring 204. Four sets of positioning components are arranged on the corresponding arc-shaped friction plates 2 for positioning the installation of the arc-shaped friction plates 2. When the brake on the electric vehicle is activated, the brake pads will make contact friction with the arc-shaped friction plates 2 inside the brake pan 1 to brake. When an arc-shaped friction plate 2 is severely worn, the retaining ring 201 can be rotated to unscrew it from the threaded ring 204, thereby exposing the arc-shaped friction plate 2. Then, the worn arc-shaped friction plate 2 can be pulled out and replaced.

[0047] Specifically, the positioning components include two T-slots 202 formed inside the arc-shaped friction plate 2 and two T-strips 203 arranged on the inner wall of the brake pot 1. The two T-strips 203 are slidably installed in the two T-slots 202 respectively. During installation, the arc-shaped friction plate 2 can be fitted onto the corresponding T-strip 203 through the T-slots 202. The T-slots 202 and T-strips 203 can be used to position the arc-shaped friction plate 2 and prevent it from shifting.

[0048] Example 2:

[0049] Based on Example 1, in order to reinforce the installation of the friction structure, a reinforcement structure is arranged on the friction structure.

[0050] The reinforcement structure includes a toothed ring 3 fixedly sleeved on the retaining ring 201, a guide strip 301 arranged on the outer surface of the brake drum 1, a slide strip 302 slidably installed inside the guide strip 301, and a limiting toothed plate 303 arranged on one side of the slide strip 302 and meshing with the toothed ring 3. By setting the limiting toothed plate 303 to mesh with the toothed ring 3, the retaining ring 201 can be prevented from rotating and loosening. When the limiting toothed plate 303 disengages from the toothed ring 3, the retaining ring 201 can be rotated to remove the arc-shaped friction plate 2.

[0051] The reinforcing structure also includes an elastic component arranged on the slide bar 302 to push the slide bar 302 so that the limiting tooth plate 303 and the tooth ring 3 are engaged.

[0052] Specifically, the elastic component includes a spring 304 arranged on one side of the slide bar 302, one end of the spring 304 is arranged on the inner wall of the guide bar 301, and a fixed guide rod 305 is arranged on the inner wall of the guide bar 301 and slidably installed inside the slide bar 302. The spring 304 is slidably sleeved on the fixed guide rod 305. Pulling the limiting tooth plate 303 drives the slide bar 302 to slide. The slide bar 302 will slide on the fixed guide rod 305 and compress the spring 304. The setting of the fixed guide rod 305 can prevent the slide bar 302 from falling out of the guide bar 301, and at the same time prevent the spring 304 from bending when it extends and retracts. When the limiting tooth plate 303 is released, the compressed spring 304 will push the slide bar 302 and the limiting tooth plate 303 to reset.

[0053] Example 3:

[0054] Based on Example 1, in order to guide the airflow to contact the arc-shaped friction plate 2 for cooling, a flow-guiding structure is arranged on the brake pot 1.

[0055] The flow-guiding structure includes several strip-shaped flow-guiding holes 4 evenly distributed inside the brake pot 1. The strip-shaped flow-guiding holes 4 correspond to one side of the arc-shaped friction plate 2. When the airflow passes through the strip-shaped flow-guiding holes 4, it can carry away the heat of the arc-shaped friction plate 2, thereby achieving auxiliary cooling of the arc-shaped friction plate 2.

[0056] The flow diversion structure also includes several flow diversion hoods 401 evenly arranged on the outer surface of the brake pot 1. The flow diversion hoods 401 are connected to the strip-shaped flow guide holes 4. When the electric vehicle tire and the brake pot 1 rotate, they will drive the flow diversion hoods 401 to move in a circular motion. Under the movement of the flow diversion hoods 401, the external airflow can be introduced into the strip-shaped flow guide holes 4.

[0057] Working principle: When the brakes on the electric vehicle are activated, the brake pads will contact and rub against the arc-shaped friction plate 2 inside the brake drum 1, reducing the rotational speed of the brake drum 1 and the tire, thus achieving braking. The arc-shaped friction plate 2 adopts a detachable design and is arranged in multiple pieces. When the arc-shaped friction plate 2 is severely worn, the limiting tooth plate 303 can be pulled to drive the slide bar 302 to slide. The slide bar 302 will slide on the fixed guide rod 305 and compress the spring 304. The continuously moving limiting tooth plate 303 will disengage from the toothed ring 3, thereby releasing the restriction on the retaining ring 201. When the retaining ring 201 is rotated, it can be unscrewed from the threaded ring 204, thereby exposing the arc-shaped friction plate 2. Figure 2After removing the worn arc-shaped friction plate 2, it can be replaced individually to avoid replacing the entire plate. During installation, the arc-shaped friction plate 2 is fitted onto the corresponding T-strip 203 through the T-slot 202. The T-slot 202 and T-strip 203 are used to position the arc-shaped friction plate 2 and prevent it from shifting. Then, the retaining ring 201 is rotated and screwed back onto the threaded ring 204. The retaining ring 201 has threads inside that are compatible with the threaded ring 204, so that the retaining ring 201 can block one side of the arc-shaped friction plate 2 and prevent it from shifting. When the arc-shaped friction plate 2 is released, the corresponding limiting tooth plate 303 is released. At this time, the compressed spring 304 will push the slide bar 302 and the limiting tooth plate 303 to reset, so that the limiting tooth plate 303 re-engages with the toothed ring 3, preventing the retaining sleeve ring 201 from rotating and loosening. During the rotation of the electric vehicle tire and the brake drum 1, the flow guide 401 will move in a circular motion. Under the movement of the flow guide 401, the external airflow can be introduced into the strip-shaped flow guide hole 4, so that the airflow can pass through the side of the arc-shaped friction plate 2, and at the same time carry away the heat generated by the arc-shaped friction plate 2 during use, which can achieve auxiliary cooling of the arc-shaped friction plate 2.

[0058] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A brake pot structure for the rear axle of an electric tricycle, comprising a brake pot (1), characterized in that, Also includes: The friction structure is arranged inside the brake pan (1) and is used to contact and rub against the brake of the electric tricycle to brake. A reinforcing structure, placed on the friction structure, is used to reinforce the installation of the friction structure; The airflow guiding structure is arranged on the brake pot (1) to guide the airflow to contact the arc-shaped friction plate (2) to cool it down.

2. The electric tricycle rear axle brake drum structure as described in claim 1, characterized in that, The friction structure includes: Four arc-shaped friction plates (2) are evenly and detachably installed inside the brake pot (1), and the four arc-shaped friction plates (2) are spliced ​​together with each other; The retaining ring (201) is movably fitted on the brake drum (1) and the four arc-shaped friction plates (2); The threaded ring (204) is fixedly sleeved on the brake drum (1), and the retaining sleeve ring (201) is threadedly sleeved on the threaded ring (204).

3. The electric tricycle rear axle brake drum structure as described in claim 2, characterized in that, The arc-shaped friction plate (2) is provided with four sets of positioning components for positioning the installation of the arc-shaped friction plate (2).

4. The electric tricycle rear axle brake drum structure as described in claim 3, characterized in that, The positioning component includes: Two T-slots (202) are formed inside the arc-shaped friction plate (2); Two T-shaped strips (203) are arranged on the inner wall of the brake pot (1), and the two T-shaped strips (203) are slidably installed in the two T-shaped grooves (202).

5. The electric tricycle rear axle brake drum structure as described in claim 1, characterized in that, The reinforcement structure includes: The toothed ring (3) is fixedly sleeved on the retaining sleeve ring (201); Guide strip (301) is arranged on the outer surface of brake pot (1); The slide bar (302) is slidably installed inside the guide bar (301).

6. The electric tricycle rear axle brake drum structure as described in claim 5, characterized in that, One side of the slide bar (302) is provided with a limiting tooth plate (303) that meshes with the toothed ring (3).

7. The electric tricycle rear axle brake drum structure as described in claim 1, characterized in that, The reinforcement structure also includes an elastic component arranged on the slide bar (302) to push the slide bar (302) so that the limiting tooth plate (303) and the tooth ring (3) remain engaged.

8. The electric tricycle rear axle brake drum structure as described in claim 7, characterized in that, The elastic component includes: A spring (304) is arranged on one side of the slider (302), and one end of the spring (304) is arranged on the inner wall of the guide bar (301); A fixed guide rod (305) is arranged on the inner wall of the guide bar (301) and slidably installed inside the slide bar (302), and the spring (304) is slidably sleeved on the fixed guide rod (305).

9. The electric tricycle rear axle brake drum structure as described in claim 1, characterized in that, The flow-guiding structure includes several strip-shaped flow-guiding holes (4), which are evenly opened inside the brake pot (1). The strip-shaped flow-guiding holes (4) correspond to one side of the arc-shaped friction plate (2).

10. The electric tricycle rear axle brake drum structure as described in claim 1, characterized in that, The drainage structure also includes several drainage covers (401), which are evenly arranged on the outer surface of the brake pot (1). The drainage covers (401) are connected to the strip-shaped guide holes (4).

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