Novel automobile brake drum structure

Abstract

The utility model relates to the technical field of brake drums, and discloses a novel automobile brake drum structure which comprises a drum body, a cavity is formed in the drum body, an annular partition plate is fixedly connected to the interior of the cavity, and a plurality of cooling fins are fixedly connected to one side of the annular partition plate and the upper side and the lower side of the interior of the cavity at equal intervals. A hollow gear ring is fixedly connected to the inner side of the annular partition plate, a plurality of rotating rods are rotatably connected to the periphery of the rear side of the interior of the cavity at equal intervals, gears are fixedly connected to the outer sides of the rotating rods, and the multiple gears are all connected with the interior of the hollow gear ring in an engaged mode. According to the utility model, cooling water in the cavity of the brake drum can always flow in the two areas enclosed by the annular partition plate through the connecting pipe, while the brake drum rotates, the hollow gear ring rotates along with the brake drum, and the gear rotates along with the brake drum, so that the stirring rod can be driven to rotate to stir a water source in the cavity; therefore, the cooling effect of the brake drum can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drums, in particular to a novel structure of an automobile brake drum. Background Art

[0002] An automobile brake drum is a key component in an automobile braking system. It is usually a cylindrical metal component installed inside the wheel hub. It can be used to effectively decelerate and stop the vehicle to avoid accidents and improve driving stability, so it has been widely used.

[0003] When the automobile brake drum is in use, it rotates with the wheel hub. When the driver steps on the brake pedal, the brake shoe expands outward under the action of hydraulic or mechanical force and generates friction with the inner surface of the brake drum. This frictional force converts the kinetic energy of the automobile into heat energy, thereby achieving the deceleration and stopping of the vehicle.

[0004] However, when the existing automobile brake drums on the market are in use, since a large amount of heat is easily generated inside the brake drum, heat dissipation is carried out through the ventilation holes or fixed heat sinks opened on it to prevent the automobile brake drum from being damaged due to high temperature. However, when the brake drum is frequently braked multiple times, the heat generated in a short time is not easily dissipated, which still poses a safety hazard to the normal driving of the automobile, thus failing to meet the needs of users. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a novel structure of an automobile brake drum, aiming to improve the problem that the heat generated by the existing automobile brake drum during short-term frequent use is not easily dissipated.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel structure of an automobile brake drum, including a drum body. A cavity is opened inside the drum body. An annular partition is fixedly connected inside the cavity. A plurality of heat dissipation fins are fixedly connected at equal intervals on one side of the annular partition and the upper and lower sides inside the cavity. A hollow tooth ring is fixedly connected inside the annular partition. A plurality of rotating rods are rotatably connected at equal intervals around the rear side inside the cavity. Gears are fixedly connected to the outer sides of the rotating rods. All the gears are meshed with the inside of the hollow tooth ring. A plurality of stirring rods are fixedly connected at equal intervals around the outer sides of the plurality of rotating rods. A plurality of connecting pipes are communicated at equal intervals around the outer side of the annular partition. A disassembly mechanism is arranged in the middle of the front side of the drum body, and the disassembly mechanism is used to facilitate the quick disassembly of the drum body.

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

[0008] The disassembly mechanism includes a circular ring and a transmission belt. The circular ring is fixedly connected to the inner side of the drum body. The rear side of the circular ring is rotatably connected with a first bolt. The front end of the first bolt penetrates the circular ring. The front side of the circular ring is rotatably connected with a plurality of second bolts at equal intervals. The outer sides of the second bolts and the first bolts are fixedly connected with pulleys. The plurality of pulleys are connected through the transmission belt. A fixing ring is provided on the front side of the circular ring. A plurality of mounting holes are equidistantly provided around one side of the fixing ring.

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

[0010] The top of the drum body is connected with a liquid inlet pipe, the bottom end of the liquid inlet pipe passes through the cavity, and the top end of the liquid inlet pipe is threadedly connected with a sealing cover.

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

[0012] The front ends of the first bolt and the second bolt are respectively connected to the inner threads of the corresponding rings.

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

[0014] A fixed nameplate is fixedly connected to the middle and upper part of the front side of the drum body, and the size of the annular partition is consistent with the internal size of the cavity.

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

[0016] The disassembly mechanism also includes connecting rods, and a plurality of the connecting rods are respectively fixedly connected around the front side of the circular ring, and the front ends of the plurality of connecting rods are fixedly connected to the rear end of the fixing ring.

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

[0018] The heat dissipation fins on one side of the cavity are staggered one by one with the corresponding heat dissipation fins on the outer side of the annular partition.

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

[0020] The sizes of the fixing ring and the circular ring are matched with the inner size of the drum body.

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

[0022] 1. In the present utility model, cooling water is injected into the cavity through the liquid inlet pipe in advance. During the walking process of the wheel hub, the brake drum will rotate accordingly. At this time, the cooling water in the brake drum cavity will flow continuously through the connecting pipe in the two regions surrounded by the annular partition, and cooperate with the heat dissipation fins to cool the brake drum. While the brake drum rotates, the hollow gear ring will rotate accordingly, and the gear meshing with it will rotate, thereby driving the stirring rod to rotate and stir the water source in the cavity, accelerating the cooling of the cooling water, ensuring the cooling effect of the brake drum, and meeting the needs of users.

[0023] 2. In the present utility model, when the first bolt is rotated, the pulley on its outer side will rotate accordingly, and the pulley on the second bolt will rotate through the transmission belt, enabling the first bolt and the second bolt to simultaneously release the limit fixation of the outer wheel hub. The disassembly and replacement of the brake drum are relatively simple, thereby improving the practicability of the device. Description of the Drawings

[0024] Figure 1 is a three-dimensional view of a novel automobile brake drum structure proposed by the present utility model;

[0025] Figure 2 is a structural cross-sectional view of a novel automobile brake drum structure proposed by the present utility model;

[0026] Figure 3 is Figure 2 the enlarged view at A in

[0027] Figure 4 is a rear structural cross-sectional view of a novel automobile brake drum structure proposed by the present utility model;

[0028] Figure 5 is a structural exploded view of a novel automobile brake drum structure proposed by the present utility model.

[0029] Legend Explanation:

[0030] 1. Drum body; 2. Disassembly mechanism; 201. Ring; 202. First bolt; 203. Second bolt; 204. Pulley; 205. Transmission belt; 206. Fixed ring; 207. Installation hole; 208. Connecting rod; 3. Cavity; 4. Annular partition; 5. Heat dissipation fins; 6. Hollow gear ring; 7. Rotating rod; 8. Gear; 9. Stirring rod; 10. Connecting pipe; 11. Liquid inlet pipe; 12. Sealing cover; 13. Fixed nameplate. Detailed Implementation Manner

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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.

[0032] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present utility model: a new type of automotive brake drum structure, including a drum body 1. A cavity 3 is provided inside the drum body 1. An annular partition 4 is fixedly connected inside the cavity 3. A plurality of heat dissipation fins 5 are fixedly connected at equal intervals on one side of the annular partition 4 and the upper and lower sides inside the cavity 3. A hollow tooth ring 6 is fixedly connected inside the annular partition 4. A plurality of rotating rods 7 are rotatably connected at equal intervals around the rear side inside the cavity 3. A gear 8 is fixedly connected to the outer side of the rotating rod 7. A plurality of gears 8 are all meshed and connected to the inside of the hollow tooth ring 6. A plurality of stirring rods 9 are fixedly connected at equal intervals around the outer side of the plurality of rotating rods 7. A plurality of connecting pipes 10 are communicated at equal intervals around the outer side of the annular partition 4. A disassembly mechanism 2 is provided in the middle of the front side of the drum body 1. The disassembly mechanism 2 is used to facilitate the rapid disassembly of the drum body 1. A liquid inlet pipe 11 is communicated at the top of the drum body 1. The bottom end of the liquid inlet pipe 11 penetrates through the cavity 3. A sealing cover 12 is threadedly connected to the top end of the liquid inlet pipe 11;

[0033] Specifically, first unscrew the sealing cover 12, and then inject cooling water into the cavity 3 through the liquid inlet pipe 11 to ensure that the cooling water can be evenly distributed in the cavity 3. After completing this step, tighten the sealing cover 12 again to ensure that the cooling water will not leak. When the wheel hub is moving, the drum body 1 will rotate with the rotation of the hub. At this time, the cooling water in the cavity 3 will continuously flow through the connecting pipes 10 in the two regions surrounded by the annular partition 4. This flowing cooling water will effectively cool the brake drum, so as to keep the brake drum within the optimal working temperature range. The heat dissipation fins 5 can effectively cool the cooling water in the cavity 3 to ensure that the temperature of the cooling water always remains at a relatively low level. When the drum body 1 is rotating, the hollow tooth ring 6 will also rotate accordingly, and the gears 8 meshed with it will rotate accordingly. At the same time, the stirring rods 9 will rotate to stir the water source in the cavity 3, which can ensure that the cooling water is evenly distributed throughout the cavity 3, thereby further improving the cooling effect of the brake drum and ensuring that the brake drum will not be affected by overheating during long-term use and affect its performance.

[0034] Referring to Figure 1 , Figure 4 and Figure 5The disassembly mechanism 2 includes a ring 201 and a transmission belt 205. The ring 201 is fixedly connected to the inner side of the drum body 1. The rear side of the ring 201 is rotatably connected with a first bolt 202. The front end of the first bolt 202 passes through the ring 201. The front side of the ring 201 is equidistantly rotatably connected with a plurality of second bolts 203. The outer sides of the second bolts 203 and the first bolts 202 are fixedly connected with pulleys 204. The plurality of pulleys 204 are connected to each other through a transmission belt 205. A fixed A fixed ring 206, a plurality of mounting holes 207 are equidistantly provided around one side of the fixed ring 206, the sizes of the fixed ring 206 and the circular ring 201 are matched with the internal size of the drum body 1, the disassembly mechanism 2 also includes connecting rods 208, the plurality of connecting rods 208 are respectively fixedly connected around the front side of the circular ring 201, the front ends of the plurality of connecting rods 208 are all fixedly connected with the rear end of the fixed ring 206, and the front ends of the first bolt 202 and the second bolt 203 are respectively connected with the corresponding internal threads of the circular ring 201;

[0035] Specifically, the mounting hole 207 on the brake drum is first accurately matched one by one with the mounting hole 207 on the outer wheel hub, and then the first bolt 202 is rotated. As the first bolt 202 rotates, the pulley 204 on the outer side thereof will also rotate accordingly. At the same time, the pulley 204 on the second bolt 203 will also rotate through the transmission belt 205. The design of this linkage mechanism enables the first bolt 202 and the second bolt 203 to be simultaneously rotated into the mounting hole 207, thereby achieving a firm fixation between the brake drum and the outer wheel hub. This fixing method not only ensures the stability and reliability of the brake drum, but also greatly simplifies the process of disassembling and installing the brake drum, thereby reducing the workload of the staff.

[0036] Reference Figure 1 A fixed nameplate 13 is fixedly connected to the middle and upper part of the front side of the drum body 1, and the size of the annular partition 4 is consistent with the internal size of the cavity 3;

[0037] Specifically, by fixing the nameplate 13 , it is convenient for the staff to operate the structure, and the size of the annular partition 4 is consistent with the internal size of the cavity 3 , which can prevent water leakage on the upper and lower sides of the annular partition 4 .

[0038] Reference Figure 3 , the heat dissipation fins 5 on one side of the cavity 3 are staggered one by one with the corresponding heat dissipation fins 5 on the outer side of the annular partition 4;

[0039] Specifically, the heat dissipation fins 5 on one side of the cavity 3 are staggered one by one with the corresponding heat dissipation fins 5 on the outer side of the annular partition 4, which can further slow down the flow rate of the cooling water, thereby reducing the temperature of the cooling water.

[0040] Working principle: Before using the automobile brake drum, first unscrew the sealing cover 12, then inject cooling water into the cavity 3 through the liquid inlet pipe 11, and then screw on the sealing cover 12. When the wheel hub is moving, the drum body 1 will rotate. At this time, the cooling water in the brake drum cavity 3 will flow through the connecting pipe 10 in the two areas surrounded by the annular partition 4 to cool the brake drum, and the heat dissipation fins 5 can cool the cooling water in the cavity 3. When the drum body 1 rotates, the hollow gear ring 6 will rotate, and the gear 8 meshing with it will rotate accordingly, thereby driving the stirring rod 9 to rotate to stir the water source in the cavity 3, thereby ensuring the cooling effect of the brake drum;

[0041] When installing the brake drum, first match the mounting holes 207 on the brake drum with the mounting holes 207 on the outer wheel hub one by one, then rotate the first bolt 202, and the pulley 204 on the outer side will rotate accordingly, and the pulley 204 on the second bolt 203 will rotate accordingly through the transmission belt 205, so that the first bolt 202 and the second bolt 203 can be simultaneously rotated into the mounting hole 207 to achieve fixation between the brake drum and the outer wheel hub, and disassembly and installation of the brake drum is relatively simple, thereby improving the practicality of the device.

[0042] 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 novel automobile brake drum structure, comprising a drum body (1), characterized in that: The drum body (1) is provided with a cavity (3) inside, an annular partition (4) is fixedly connected inside the cavity (3), a plurality of heat dissipation fins (5) are fixedly connected at equal distances on one side of the annular partition (4) and the upper and lower sides inside the cavity (3), a hollow gear ring (6) is fixedly connected inside the annular partition (4), a plurality of rotating rods (7) are rotatably connected at equal distances around the rear side inside the cavity (3), a gear (8) is fixedly connected outside the rotating rod (7), a plurality of gears (8) are meshingly connected with the inside of the hollow gear ring (6), a plurality of stirring rods (9) are fixedly connected at equal distances around the outer sides of the plurality of rotating rods (7), a plurality of connecting pipes (10) are connected at equal distances around the outer sides of the annular partition (4), and a disassembly mechanism (2) is provided in the middle of the front side of the drum body (1), the disassembly mechanism (2) is used to facilitate the rapid disassembly of the drum body (1).

2. A novel automobile brake drum structure according to claim 1, characterized in that: The disassembly mechanism (2) comprises a circular ring (201) and a transmission belt (205); the circular ring (201) is fixedly connected to the inner side of the drum body (1); a first bolt (202) is rotatably connected to the rear side of the circular ring (201); the front end of the first bolt (202) passes through the circular ring (201); a plurality of second bolts (203) are rotatably connected to the front side of the circular ring (201) at equal intervals; the outer sides of the second bolts (203) and the first bolts (202) are both fixedly connected to pulleys (204); the plurality of pulleys (204) are transmission-connected to each other via the transmission belt (205); a fixing ring (206) is provided on the front side of the circular ring (201); a plurality of mounting holes (207) are equidistantly provided around one side of the fixing ring (206).

3. A novel automobile brake drum structure according to claim 1, characterized in that: The top of the drum body (1) is connected to a liquid inlet pipe (11), the bottom end of the liquid inlet pipe (11) passes through the cavity (3), and the top end of the liquid inlet pipe (11) is threadedly connected to a sealing cover (12).

4. A novel automobile brake drum structure according to claim 2, characterized in that: The front ends of the first bolt (202) and the second bolt (203) are respectively connected to the inner threads of the corresponding rings (201).

5. The novel automobile brake drum structure according to claim 1 is characterized in that: A fixed nameplate (13) is fixedly connected to the middle and upper part of the front side of the drum body (1), and the size of the annular partition plate (4) is consistent with the internal size of the cavity (3).

6. A novel automobile brake drum structure according to claim 2, characterized in that: The disassembly mechanism (2) further comprises connecting rods (208), wherein a plurality of the connecting rods (208) are respectively fixedly connected to the front sides of the circular ring (201), and the front ends of the plurality of connecting rods (208) are all fixedly connected to the rear end of the fixing ring (206).

7. The novel automobile brake drum structure according to claim 1 is characterized in that: The heat dissipation fins (5) on one side of the interior of the cavity (3) are staggered one by one with the heat dissipation fins (5) on the outer side of the corresponding annular partition (4).

8. The novel automobile brake drum structure according to claim 2 is characterized in that: The sizes of the fixing ring (206) and the circular ring (201) are matched with the internal sizes of the drum body (1).

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